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Eat Pi
United States
เข้าร่วมเมื่อ 23 ก.พ. 2020
A professional engineer teaching math, physics, and engineering topics.
Solve Tangent Lengths with Common Points | Geometry | Eat Pi
In this video, I teach you how to find the length of two segments that are tangent to the same circle. We can do this using the external tangent congruence theorem - which states that 2 tangents that are drawn from the same external point are congruent.
If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
มุมมอง: 26
วีดีโอ
Find the Radius of a Circle Given a Tangent | Geometry | Eat Pi
มุมมอง 79314 วันที่ผ่านมา
In this video, I teach you how to find the radius of a circle when given a tangent line and point. This can be done by realizing that tangents are perpendicular to radii, so we can use the Pythagorean Theorem to solve for missing side lengths of a right triangle. If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, ...
Draw & Identify Common Tangents | External & Internal | Geometry | Eat Pi
มุมมอง 48114 วันที่ผ่านมา
In this video, I teach you how to draw and identify common tangents between two circles. I also cover how to identify common internal and external tangents, which can be done by drawing a straight line from one circle to another. There are 3 different cases you will see: intersections at 2 points, 1 point, and no points. I do an example of each one. 0:00 - Not Intersecting - 4 Tangents 1:48 - N...
Special Lines in Circles - Chords, Secants, Tangents | Geometry | Eat Pi
มุมมอง 10814 วันที่ผ่านมา
In this video, I teach you how to identify special lines and segments that intersect circles including chords, secants, and tangents, and points of tangency. I also explain how they're different from a circle's radius and diameter. If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
Law of Cosines - Solve for Lengths & Angles | Trigonometry | Eat Pi
มุมมอง 15114 วันที่ผ่านมา
In this video, I teach you about the law of cosines and how to setup and solve triangle lengths and angles. There are 2 common cases you can solve for using the law of cosines: Side-Angle-Side and Side-Side-Side. I cover the SAS example in this video. 0:00 - Introduction 1:38 - SAS Example If you have any questions, please leave them in the comment section below! Also, if you find the videos he...
Law of Sines - Solve for Lengths & Angles | Trigonometry | Eat Pi
มุมมอง 8921 วันที่ผ่านมา
In this video, I teach you about the law of sines and how to setup and solve triangle lengths and angles. I go over 2 different cases: given 2 sides and 1 angle (SSA) given 2 angles and 1 side (ASA) 0:00 - Introduction 1:07 - Given 2 Sides & 1 Angle 7:40 - Given 2 Angles & 1 Side If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, ple...
Identify Right Triangles | Geometry | Eat Pi
มุมมอง 48321 วันที่ผ่านมา
In this video, I teach you how to determine if a triangle is a right triangle, or not, by using the Pythagorean Theorem a^2 b^2 = c^2 I cover 2 examples, one of which has a radical for a length (square root). If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
Area of Any Triangle Using Sine | Geometry | Trigonometry | Eat Pi
มุมมอง 15521 วันที่ผ่านมา
In this video, I teach you how to find the area of any triangle when you given 2 side lengths and the angle between those 2 sides. This can be done using the trigonometric function sine. If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
Find Angles When Given Side Lengths | Inverse Trig Ratios | Eat Pi
มุมมอง 12421 วันที่ผ่านมา
In this video, I teach you how to solve for all the angles of a right triangle when given at least 2 side lengths. This can be done using inverse trigonometric ratios: inverse sine cosine and tangent (also known as arcsine arccosine and arctangent). 0:00 - Example 1 5:55 - Example 2 If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, ...
Solve For Triangles Given 1 Side & 1 Angle | Tangent Ratio | Trigonometry | Eat Pi
มุมมอง 6221 วันที่ผ่านมา
In this video, I give you a quick introduction to the tangent ratio and teach you how to identify the 3 sides of a triangle: opposite, adjacent, and hypotenuse. I also show you how to solve for the missing side of a triangle given 1 angle and 1 side using the tangent trig function. 0:00 - Intro - Identify 3 Sides 3:38 - Example 1 6:25 - Example 2 If you have any questions, please leave them in ...
Intro to Trigonometry - Find Triangle Lengths & Angles Using Sine, Cosine, & Tangent
มุมมอง 1683 หลายเดือนก่อน
In this video, I teach you basic trigonometric topics which includes finding missing side lengths and angles of right triangles. We can do this using the 3 basic trig functions: sine, cosine, and tangent. I also show you how to use the inverses arcsine, arccosine, and arctangent. 0:00 - Intro 0:55 - Ex 1: Find a Length 4:02 - Ex 2: Find a Length 5:41 - Ex 3: Find a Length 7:05 - Ex 4: Find a Le...
Find a Piecewise Function From a Graph | Domain & Range | Eat Pi
มุมมอง 1563 หลายเดือนก่อน
In this video, I teach you how to write a piecewise function from a graph that has 3 lines. I show you how to use slope-intercept form to find the equation of the lines. The example covers a trapezoid graph. If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, and subscribe!
Write Exponential Functions Given 2 Points | Substitution Method | Eat Pi
มุมมอง 1393 หลายเดือนก่อน
Basic Examples: th-cam.com/video/LweqjVOddg8/w-d-xo.html In this video, I teach you how to write an exponential function in the form y=ab^x when given two different points (2,5) and (4,8). I show you how to do this using the substitution method and also cover several different exponent rules in this example. If you have any questions, please leave them in the comment section below! Also, if you...
Find the LCM of 2 Large Numbers | Prime Factorization Method | Eat Pi
มุมมอง 2913 หลายเดือนก่อน
In this video, I teach you how to find the Least Common Multiple (LCM) of big numbers using the prime factorization method. The example I cover is 124 and 48. There's a Pre-Algebra playlist attached at the end of the video if you need help with any other topics. If you have any questions, please leave them in the comment section below! Also, if you find the videos helpful, please like, share, a...
Find Lengths in 45-45-90 and 30-60-90 Triangles | Geometry | Eat PI
มุมมอง 945 หลายเดือนก่อน
Find Lengths in 45-45-90 and 30-60-90 Triangles | Geometry | Eat PI
Identify Triangles as Acute, Obtuse, or Right Given The Lengths | Pythagorean Theorem | Eat Pi
มุมมอง 1445 หลายเดือนก่อน
Identify Triangles as Acute, Obtuse, or Right Given The Lengths | Pythagorean Theorem | Eat Pi
Solve Complex Fractions With Large Exponents | Eat Pi
มุมมอง 2815 หลายเดือนก่อน
Solve Complex Fractions With Large Exponents | Eat Pi
Find the Missing Whole Number of a Pythagorean Triple | Geometry | Eat Pi
มุมมอง 2985 หลายเดือนก่อน
Find the Missing Whole Number of a Pythagorean Triple | Geometry | Eat Pi
Pythagorean Triples | Scale Right Triangles | Geometry | Eat Pi
มุมมอง 1865 หลายเดือนก่อน
Pythagorean Triples | Scale Right Triangles | Geometry | Eat Pi
Find The Missing Triangle Length - Write in Simplest Radical Form | Geometry | Eat Pi
มุมมอง 8205 หลายเดือนก่อน
Find The Missing Triangle Length - Write in Simplest Radical Form | Geometry | Eat Pi
Find Triangle Side Lengths with Angle Bisectors | Proportions | Geometry | Eat Pi
มุมมอง 1185 หลายเดือนก่อน
Find Triangle Side Lengths with Angle Bisectors | Proportions | Geometry | Eat Pi
Find Missing Lengths in Parallel & Transversal Lines | Geometry | Eat Pi
มุมมอง 1935 หลายเดือนก่อน
Find Missing Lengths in Parallel & Transversal Lines | Geometry | Eat Pi
Find Triangle Side Lengths With Parallel Lines | Proportions | Geometry | Eat Pi
มุมมอง 3545 หลายเดือนก่อน
Find Triangle Side Lengths With Parallel Lines | Proportions | Geometry | Eat Pi
Find Triangle Lengths Using The Geometric Mean | Geometry | Eat Pi
มุมมอง 865 หลายเดือนก่อน
Find Triangle Lengths Using The Geometric Mean | Geometry | Eat Pi
Find the Geometric Mean of a Pair of Numbers | Geometry | Eat Pi
มุมมอง 1436 หลายเดือนก่อน
Find the Geometric Mean of a Pair of Numbers | Geometry | Eat Pi
Write Similarity Statements for Right Triangles | Geometry | Eat Pi
มุมมอง 4456 หลายเดือนก่อน
Write Similarity Statements for Right Triangles | Geometry | Eat Pi
Identify Similar Polygons - Lengths, Angles, & Scale Factors | Geometry | Eat Pi
มุมมอง 626 หลายเดือนก่อน
Identify Similar Polygons - Lengths, Angles, & Scale Factors | Geometry | Eat Pi
Solve a Proportion With 3 Fractions - 2 Different Variables | Eat Pi
มุมมอง 1226 หลายเดือนก่อน
Solve a Proportion With 3 Fractions - 2 Different Variables | Eat Pi
Solve Proportions | Cross Multiplication | Eat Pi
มุมมอง 1256 หลายเดือนก่อน
Solve Proportions | Cross Multiplication | Eat Pi
Find Triangle Lengths & Angles Using Extended Ratios | Geometry | Eat Pi
มุมมอง 1776 หลายเดือนก่อน
Find Triangle Lengths & Angles Using Extended Ratios | Geometry | Eat Pi
This gave me a number way off
I'm subbing cause he said 69 so casually. Witth a nice
How did u get 12
ngerjain mtk bingung bingung mlh nemu video pke inggris
You have done a great job sir Please for summarize rules I can follow to teach my pupils when I'm treating this lesson
Why is the denom's variable handled differ'ly than its counterpart? I can correctly bal.equations through reduction with the var. as the numerator. Confusingly, the same approach doesn't work with the var. set as the denom.
Great question! In order to solve for a variable, we need to isolate it. The easiest way to isolate a variable in the denominator is to move it to the numerator. However, you could technically still solve for a variable and keep it in the denominator, but it's a longer, more complicated process. For instance, we can take the problem I used in the video: 30/x = 10 30 is in the numerator x is in the denominator Instead of getting rid of the denominator, lets get rid of the numerator. In order to do that, we can multiply both sides of the equation by 1/30. Why? Because we're trying to get rid of the 30 in the numerator, and we can do that by reciprocal of 30, which is 1/30. 1/30 * 30/x = 10 * 1/30 On the left side, the 30 on the top and bottom cancel out and we're left with 1/x On the right side, to multiply fractions just multiply straight across, so we get 10/30 which reduces down to 1/3 We're left with 1/x = 1/3 To get a balanced equation, the numerators and denominators have to match. The numerators match (they're both 1), so for the denominators to match, we can now see x = 3, then we get 1/3 = 1/3. So as you can see we get the same answer (x=3) but with several more steps. That's why, generally, moving the variable to the numerator is the easiest way to solve for it. Hope that helps!
That's what I was looking for 🎉
lol I'm glad I could help :D
It's very useful to me thank you
I'm so glad to hear that, and you're welcome! :D
Thank you so much for this tutorial really need it for grade 5 😊 all Ur vid helps
You're very welcome! I'm so happy to hear your finding the vids helpful :D
THANK YOU SO MUCH, i don't know how i've never understood this topic beforee
You are very welcome! And I don't blame you, there are several math topics that are a little hard to understand at first. You need to see it a couple times before it starts clicking. I'm glad its making sense now! 🙏
thank you so much
You are very welcome! :D
If x>3, how can we substitute the value 3 along with 4 when its already given x is bigger than 3, its only possible id x> or equal to 3 right? 3:44
@Fizaaahhh Great question! You're right, 3 > 3 is an invalid statement. However, the reason we plug in 3 to evaluate the point is just so the graphs lines up properly. If you want, you could plug in something really close to 3 like 3.0000001, but you're basically going to get the same answer which is why it's easier if we just use 3 to evaluate it. Also, when graphing our line on the corrdinate plane, we make sure we put an OPEN circle because thats how we show the graph doesnt actually touch or include x = exactly 3, but that it does include all numbers greater than 3. Hope that helps 👍
Thanks it's very helpful for students
You're very welcome - I'm glad it was helpful!
again you are an increddible teacher thans so so much I learned a lot from you and my students as well they asked me to say thank you .
As always, thank you very much for the kind words! 🙏 I'm glad you continue to find the videos helpful, and you are ALL very welcome! 😁
@@Eat_Pi you deserve our apreciation for your hard work was really helpful for a lot of students I i watched almost all videos you posted was really a great job thank you again.
I was required to watch this because if i don't my math teacher will commit war crime after war crime to me:( thanks for the explanation tho champ:)
I hope you report his/her butt to The Hauge! And you're welcome, glad I could help 😄
this is still so confusing to me..
I'm sorry to hear that! If you give me your problem I could probably walk you through it 👍
thank you!!
Always happy to help 👍
IM THE FIRST COMMENT!!!! this is basically a free math lesson
It is a free math lesson 😄 Planning on giving you all a lot more of those! 🙏
Short and sweet 😊 just saved my CA
lol I'm glad I could save you! 😄
these videos are amazing too bad people dont search for it.
lol I'm glad you liked it! I'm just happy I get to help the people who ARE looking for it 🙏
Thanks for helped me😊
So happy to hear that! 😃
I never really got this math in school, and 50 years later, I never had a need for it. Useful for some, but wasn't useful for me.
Yeah there's a lot of "random" math topics. Some help, some don't. Funny enough, this topic was actually kind of useful for me. As a civil engineer, I design the geometry of roadways - so it was an important topic to learn about tangents and how they relate to circles and curves.
While it is a little harsh, I will say this: if you don't "get" math in school then a career that doesn't need math chooses you and not the other way around. I am a chemical engineer, I couldn't have even finished the first year of my degree without calculus and Linear algebra. It's not for everyone.
How you're vidos dont have likes if you do a very good job
You explain very well🎉
Thank you I try to be thorough! 🙏
👍👍
I am glad you are enjoying the content!
Bestest
lol thank you!
Just use the formula : (a+b)² = a² + 2ab + b² in the explanation
That's an algebra topic that everyone watching this geometry video may no be familiar with. That's why I didn't use it - but yes, that is definitely another way to multiply binomials 👍
@@Eat_Pi It's a common formula in maths, used in a lot of math videos. I think most people who watch math videos know this formula. And when they don't know, never too late too learn.
Your a g bro helping alot😊
lol I'm happy to help! 🙏
Thank u so much this helped so much and it was so clear I couldn't find a video so clear and simple like urs also I subscribed to u and liked!!!!!!
I'm so glad to hear it was helpful! And thank you for the support, I really appreciate it! 🙏 btw I'm always around if you ever have any questions 👍
@@Eat_Pi thanks!!!!
Amigos el que qo - hwb visca 👽
This is the only way im going to pass 8th grade math 😂
It's a great idea to watch a topic BEFORE class because then you have a better idea of what you're teacher is talking about. Try it out and see if it helps! And I'm always around if you have questions 🙏 lol
How do u know if it adds up to 180⁰?
Good question! We know because angles along a straight line add up to 180 degrees 👍
Very true..am 45 by the way,wish what am learning now could have been taught back then😂😂
lol well as they say, better late than never, right? :D
Thank you very much! I've been learning through IXL, however, they did not have a video for this particular topic so this was very useful.
P.S I loved your intro "What's up you freakin geniuses" Lol🤣
I'm so happy to hear it was helpful! 🙏 And I'm glad you like the intro - I'm sending nothing but good vibes your way 😎 lol
@@Eat_Pi Thanks I'll take all that I can get
You explained this topic better than my gen math teacher
lol well I'm glad it made sense! 😃
How are the secant of a circle, and secant as the reciprocal of sine related? Or are they?
That's a great question! As far as I know, although they share a common name, there is no relation between a secant of a circle and a secant in trigonometry
@@Eat_Pi Thank you. I should have referenced cosine rather than sine, but I assume the answer is the same. That's interesting because etymology-wise something is getting cut in both cases. But it appears secant is just a descriptor and not a relator.
@@jonwill I knew what you meant lol but yes it's probably not the easiest thing to distinguish since they have the exact same name. It doesn't help that geometry and trig get taught around the same time in school either - further providing confusion. This is why it's also important how we word things when we're talking about math, which I'm still always working on myself btw 😅
Thanks a lot professor for your efforts. I follow you from Algeria
Oh wow that's so amazing to hear! Thank you for the support, I hope you continue to find the topics helpful 🙏
this was a great explanation of real number classifications.
Thank you! I'm glad to hear it made sense 😄
I need to know math to pass ged math and pass asvab for army just to drive and shoot lmfao
What's the #1 type of math to study for ged
LMAO well good luck with your tests! 😄 I hadn't thought of making a GED math review video (no one has ever asked) but I probably will now. In the meantime I'm pretty sure I've covered most, if not all, the topics you'd find on the math portion of the GED. I can try to put together a playlist if you'd like. Also I never knew about that ASVAB exam so thanks for bringing it to my attention, I'll try to do a little more research on it and try to make a video for that too soon 👍
the explanation is very simple just see which one is the inner most group symbol i like it :)
I try to simplify math topics as much as possible so I'm glad it made sense! 😄
Thank your 🎉
You're very welcome, I'm always happy to help 🙏
Thank you you really halp..God bless you..🫵🥰🥰
You're very welcome, I'm always happy to help! 🙏
So quick and easy to understand. Thank you!
You're welcome, I'm glad it made sense! 😄
but why isnt 5x+7x not equal to 12x²? i thought it worked that way but tysm for the explanation❤
@bradleson509 Good question! When adding or subtracting, the variables stay the same. When multiplying or dividing, the variables and exponents can change. Here, we're adding. So it's kind of like saying, what's 5 apples + 7 apples? 12 apples Not 12 apples² However, when you're multiplying, then yes you need to multiply the numbers AND the variables so: 5x*7x The numbers: 5*7=35 The variables: x*x=x² So combined = 35x² Hope that helps 👍
@@Eat_Pi ohhhh, okay tysm i really needed that help♥️
👍👍
@@bravikumar8950 🙏
Q👍👍👍
@@bravikumar8950 👍😃👍
This is so easy why do people call it hard?
lol I'm glad it was straight forward and made sense 👍
Tysm
You're very welcome!
great video , What software and drawing tablet you are using?
So so helpful. Much easier method than using the crazy formulas. Thanks for sharing!
@Bella-jz3oc I'm so glad to hear it was helpful! And you're very welcome 😁