Angles of Triangle: Sum of Interior Angles and Exterior Angle Theorem by
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- เผยแพร่เมื่อ 5 เม.ย. 2023
- Angles of Triangle: Sum of Interior Angles and Exterior Angle Theorem by @MathTeacherGon
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... Good day to you, Regarding the " Exterior Angle Theorem " it would be beneficial for beginning students to give a bit more explanation for a thorough understanding, because my experience with for instance tutoring students they will not remember the theorem without a clear understanding, so what I would do is to also first show the relationship between the exterior angle X and the interior angles ( T deg. , 88 deg. , 39 deg. ) of the triangle as follows ... [ assume unknown angle T ] .... 180 deg. - X deg. = T deg. = 180 deg. - (88 deg. + 39 deg.) ... - X deg. = - (88 deg. + 39 deg.) ... X deg. = 88 deg. + 39 deg. = 127 deg. ... now students can see for themselves that this theorem didn't randomly fall out of the sky! I personally don't like to learn theorems, but rather understand them! Thanks for your math efforts ... best regards, Jan-W
thank you so much, sir! this was very helpful and i understood very quickly. very helpful for my test tomorrow ;)
Great lecture on Angles 😊
Whenever I worked out the missing number for each angle, what I did was I added up the sum of each triangle using my calculators and then subtracting the given number from 180° to figure out the missing number
The 3rd one Is wrong your meant to take the 127 away from 180
wonderful..explanation is so simple and easy to follow. Thank you so much🙏🙏
Very well explained thanks!!!!
You are the best teacher please explain about angels and lines and transversals please do it today if you can
thank you so much this was very helpful
Thank you sir really appreciated 🙏 👍 👏
Good job 😮❤
Wow good example
Tank you Mr😊
good job
I love your work❤❤❤❤❤❤
formula:
x + y + z = 180
then just follow the method for solving the missing variable as trained
mathematics is just pure common sense IMO
thanks you so much my concept was cleared in 5 minutes 😃😃
Thank you Sir
your solution in triangle number 3 is wrong = x + y = 180, let y is our third interior angle; y + 88 + 39 = 180 = y=53, therefore; x + 53 = 180; x = 127..THE SUM OF TWO INTERIOR ANGLES (88 & 39" CANNOT BE ADDED WITH AN EXTERIOR ANGLE X DIRECTLY.
Perfect example ❤❤
Missing triangle
Good job thanks sir😊❤👏👏👏
Most welcome
Great letcher of angles I'm so bad at them at school 😂
Good
Perfect lecture👍👍👍👍👍👍👍
Many many thanks
Sir is left handed
Salmat, sir. Nakapasar na gyud ko♥️
welcome!
Thank you Sir i can finally complete the assignment my teacher gave me
I don’t think this lesson is for jss1😢
It is I'm in ss2
Bro come from Philippines
And he for sure knows more then you
at what grade po ito tinuturo ?
grade 8 po
I did it at grade 6
I really understand your teaching very well sell your accout I want to send you money
So not diggre my Angeles
Missing triangle