Understanding what a radian is

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle.
Angle is measured in radians or in degrees. The radian is the measure of the length of an arc of a unit circle or the measure of the radius of the circle on the circumference of the circle. pi radians is equivalent to 180 degrees. One complete revolution about a point is equivalent to 2pi radians and 360 degrees. A plane is usually divided into 4 equal parts called the quadrants.
The angle measured in the anti-clockwise direction is called a positive angle while a negative angle is measured in the clockwise direction. We measure angles starting from the positive x-axis.
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Organized Videos:
✅ Angles in Trigonometry
• Angles in Trigonometry
✅ Solve Problems with Arc Length
• Solve Problems with Ar...
✅ Angles in Trigonometry | Learn about
• Angles in Trigonometry...
✅ Sketch Angles in Standard Position
• Sketch Angles in Stand...
✅ Find the Quadrant of the Angle
• Find the Quadrant of t...
✅ Find the Reference Angle
• Find the Reference Angle
✅ Complement and Supplement of an Angle
• Complement and Supplem...
✅ Convert Radians to Degrees
• Convert Radians to Deg...
✅ Convert Degrees to Radians
• Convert Degrees to Rad...
✅ Convert Degrees to Degree Minute Seconds
• Convert Degrees to Deg...
✅ Convert Degree Minute Seconds to Degrees
• Convert Degree Minute ...
✅ Coterminal Angles | Learn About
• Coterminal Angles | Le...
✅ Find Coterminal Angles | 0 and 2pi
• Find Coterminal Angles...
✅ Find Coterminal Angles | 0 and 360
• Find Coterminal Angles...
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👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: www.freemathvi...
#trigonometry #brianmclogan

[@LordErmac2000]

You're wonderful! Really covered all the aspects in a short video, all what I was looking for, thanks!

[@brianmclogan]

thank you for watching my videos, very happy to help you

[@nicholasaguirre8764]

Students had the same questions I had, and you answered the questions is a clear and understandable way. We need more teachers like you. Thank you so much for all the videos you do!

[@deckerjadiel5836]

you all probably dont care but does anybody know of a way to get back into an instagram account..? I stupidly forgot my password. I appreciate any tricks you can give me

[@brianmclogan]

great! I have a couple of playlists for trigonometry, check them out and let me know how I can help

[@graphic-nations]

i saw other video but didn't understand well , i understand well from you thanks a lot

[@iagnwh]

I agree! You are very clear and concise. Thank you so much for your help, I'm extremely appreciative!

[@tillydaniels5122]

Hello. I watched you explain something before to help my son who is failing math. You were a great help. Now my daughter is dealing with planar cross sections. Do you have a lesson we can watch that explains this?

[@brianmclogan]

Tilly Daniels thank you very much for checking back on my channel. I do not believe I have anything on planar cross sections as I only recorded one year of teaching geometry. I will be happy to try to provide some insight to the problem if you want to message me

[@tillydaniels5122]

Sure I would love for you to see if you can help me to help her. Math has never been my strong suit. Language Arts, spelling, reading, things along that line are the subjects I excelled at in school. Please provide me with direction as to how I can message you. I've never done that before other. I've only posted comments. Thank you.

[@Eris123451]

I did all this pre-calculus stuff at night school classes 30 years ago, not with view to taking the "A" Level but simply out of curiosity and personal interest. I never quite, "got," Radians or all those damn Identities. Well at least this has cleared up Radians, thank you.

[@dudedude9528]

Thank you so much you are a very great educator clear and straight to the point god bless you

[@aaliyahblatchford9394]

This helps a lot since I didn't get a chance to learn this before the whole pandemic happened thank you

[@kesa7669]

You should have started with the information pi = 3 radius plus a little extra. As an adult trying to relearn this...I've forgotten so much math that there can not be an assumption that I know/or that your students know...that you were leading up to pi = 1/2 the circumference of a circle. You would've gotten less question if you started with pi = 3 radius plus a little extra.

[@naseral-obeidat2696]

Absolute legend...

[@stephenwood4814]

This is an extremely lucid explanation. It made the whole thing make sense to me.

[@CRINGEHUB155]

Mr. McLogan, What grade/year do you teach?

[@ramiebrahem2008]

Thank you a lot! It was very helpful.

[@vette3768]

Wow... why can't all professors explain math like you! I was getting so frustrated trying to understand my trig professor's scribbles on the board. Thanks.. will be watching more :)

[@amvxDz]

Wow. I actually got everything you said . thank you so much :)

[@brianmclogan]

you are very welcome! happy to help

[@abirmahmood7096]

That was easyyyyyyy thanksss

[@principleoflife7452]

Nice sir and my best on maths

[@graphic-nations]

by the way this my website for motion graphics www.graphicnations.com