Radians and Degrees

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  • เผยแพร่เมื่อ 20 ก.ค. 2024
  • This trigonometry video tutorial provides a basic introduction into radians and degrees. It explains the definition of the radian and how to calculate the angle measure in radians given the arc length of a circle and the length of the radius. This video also explains the process of converting degrees to radians and converting radians to degrees. To convert from degrees to radians, multiply the angle measure in degrees by pi divided by 180. To convert from radians to degrees, multiply the radian measure by 180 over pi. To calculate the angle measure in radians - divide the arc length by the length of the radius of the circle. This video also explains how to draw angles in standard position using radians instead of degrees. It explains the location of common angles such as pi/4, 3pi/4, 5pi/4, and 7pi/4 and more. This video contains a lot of examples and practice problems.
    Trigonometry - Basic Introduction:
    • Trigonometry
    Introduction to Angles:
    • Introduction to Angles
    Radians and Degrees:
    • Radians and Degrees
    What Exactly Is a Radian?
    • Trigonometry - What Ex...
    Coterminal Angles:
    • Coterminal Angles In R...
    _________________________
    Decimal Degrees to DMS:
    • Decimal Degrees to DMS...
    Arc Length of a Circle and Sector Area:
    • Arc Length of a Circle...
    Linear Speed and Angular Velocity:
    • Linear Speed and Angul...
    Clock to Angle Problems:
    • Clock Aptitude Reasoni...
    The Unit Circle:
    • The Unit Circle, Basic...
    _______________________________________
    Final Exams and Video Playlists:
    www.video-tutor.net/
    Full-Length Videos and Worksheets:
    / collections

ความคิดเห็น • 446

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  ปีที่แล้ว +22

    Final Exams and Video Playlists: www.video-tutor.net/
    Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
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  • @albertfeynman7798
    @albertfeynman7798 4 ปีที่แล้ว +34

    A little tip about converting radians to degrees,ex. 2 pi All over 3 x 180° All over pi. Simply cancel the two pi's then 180 ÷ 3 × 2 = easy to answer

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    @herkuskaminskas1409 3 ปีที่แล้ว +4

    Quick mechanical tip: to convert any angle from degrees to radians, divide that angle by 180. You will get a fraction, now write pi next to whatever number is in the numerator and boom, there is your angle in pi radians. And if you have 1 in the numerator, change it to pi. For example, if you need to convert 450° degrees to pi radians, divide 450/180, you will get 5/2. Now write pi next to 5 in the numerator, and there is your answer. And if you need to convert 30° to pi radians, do the same, you will get 1/6, and just substitute that 1 with pi. The best thing about this method is that it requires no thinking and is extremely fast. I still recommend taking the time to understand how the conversion works, but once you've done that, this method will save you a lot of time, as it works for less common angles just as well.

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  • @lemonpoundcake22
    @lemonpoundcake22 5 ปีที่แล้ว +1

    Thank you soo much. This helped me remember the radians on the unit circle 😊

  • @mattdodgers9533
    @mattdodgers9533 2 ปีที่แล้ว

    Very good. Clear and concise. Good definition of a radian!

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    @maximilianalvarez737 3 ปีที่แล้ว +1

    much better then the videos my professor recommended for my classes

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    @jupiter1876 ปีที่แล้ว

    Explained this better than my teacher! Thank you so much!

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    @lurulithambe3569 5 ปีที่แล้ว +4

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    @erict3975 5 ปีที่แล้ว +1

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    @GeekPhD ปีที่แล้ว

    i just figured out parts of the unit circle from this the absolute legend thanks bro

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    @bipboop731 4 ปีที่แล้ว +7

    0:50 , circles be the hardest shape to draw in the history of drawing

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    @ranboowasfound4425 2 ปีที่แล้ว +1

    HI THANK YOU SO MUCH I FINALLY UNDERSTAND THIS LESSON!!!

  • @AskAKill99
    @AskAKill99 ปีที่แล้ว

    9:14 breaking 11 into 10+3 and distributing 30 to 10 and 3, 30 x10=100. 30x3=30. 30+300=330°. Just algebra rules but wow you must be a super mathman . I'm jealous as I am learning all of this after high school ! And wish I would have learned sooner but I am glad there is a man like you teaching this on TH-cam thankyou and God bless u!

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    @LydiaPoik 3 หลายเดือนก่อน +1

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    @AP-qs2zf 2 ปีที่แล้ว +1

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    @lexusaguirre1225 2 ปีที่แล้ว

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  • @justabunga1
    @justabunga1 4 ปีที่แล้ว +1

    There are three modes in calculator for doing trig. and inverse trig. functions, which are degrees (deg), radians (rad), and gradians (grad). Somehow, we don't talk about gradians much in math, physics, or engineer class. I know there is a conversion between gradians with degrees and radians.

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    @mamellomoloi2356 3 ปีที่แล้ว

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  • @pvll_mirl
    @pvll_mirl ปีที่แล้ว

    I'm studying this in French but I get it because your explanation is simple and easy to understand
    Thanks for the clarification

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    @menzuma1 2 ปีที่แล้ว +1

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    @keitumetsemokhaneli2492 3 ปีที่แล้ว +1

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    @EmmanuelOnah-jx7fq ปีที่แล้ว

    You are really helping more than my teachers

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    @malamathirdsonnamoto6880 3 ปีที่แล้ว

    The Usual Info Unfolds☺☺Thank you

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    @abdulrofiuridwan3528 4 ปีที่แล้ว +1

    Nice very educative, please which app do use for tutoring.

  • @blue_blue-1
    @blue_blue-1 5 ปีที่แล้ว +4

    At 3:00: interesting approach to explain, why there maybe a „unit“ rad. But I wouldn‘t do it. It isn‘t necessary as well.
    Because the length of the radius isn‘t 6 cm/radius but simply 6 cm. Or you had to insert 12cm/arc as well, which inserts nice explanations to the formula, but likewise is not intended by SI.
    The units given in SI are m/m, this cancels out. So an angle in radians is a pure number. SI makes it possible to use „rad“ as an „unit“, too. But this I call a reminder-unit, which you can/have to replace by a 1 (that means, ignoring it) to get to the „real“ result.
    The problem with „rad“ is, that people look at it as „real“ unit, and units you should never loose. But this „unit“ is supposed to be lost, resp. interchanged by a 1.

    • @fatimalearns9618
      @fatimalearns9618 3 ปีที่แล้ว

      Thankyou so much for clearing. I got confused when he said 6cm per radius.

  • @jazminesandoval9618
    @jazminesandoval9618 5 ปีที่แล้ว +1

    How do you know which factors it is in each problem that equal 180

  • @trisanyasmith5295
    @trisanyasmith5295 3 ปีที่แล้ว

    Even though I'm watching this in 2021...I wanna say thank you alot this video help me in many ways...Plus I have a trig test tmr TY

  • @eljaymeneses9781
    @eljaymeneses9781 2 ปีที่แล้ว

    5:25, i actually figured out the formula for this many days ago when i was copying notes from the powerpoint presentation that my teacher sent to me and my class and saw our teacher's examples from the presentation. Of course, i did a bit of my own research first just to figure out the formula.

  • @stellank450
    @stellank450 3 ปีที่แล้ว

    Very good lecture. But I thought is this valid for any cirkel, let say on with r=7.
    I found yes as e.g. the half cirkel with r= 7 is 2(pi)r= 2(pi)7. As radians is the segment divided by the radius,
    in this case, we would get2(pi)7/7 that will become 2(pi). It would have been good to clarify that. Fortunately I had some old knowledge in my luggage. Thank you anyway. Your way of explaining is great with your calm voice and moderate tempo. Retired math teacher talking. Have a good day.

  • @snaphousemedia7113
    @snaphousemedia7113 2 ปีที่แล้ว +1

    love you man you made it easy for me thanks

  • @qzorn4440
    @qzorn4440 8 หลายเดือนก่อน

    A most excellent video.. 😎 Thank you.

  • @dingomars2962
    @dingomars2962 4 ปีที่แล้ว

    Man you are the best. keep up the good work

  • @jadehernandez6642
    @jadehernandez6642 3 ปีที่แล้ว +2

    Thank you so much!!

  • @princejahn8234
    @princejahn8234 3 ปีที่แล้ว

    Youre a god send right now during this pandemic