Radian vs Degree

In this video we will explore the difference between a radian and a degree and not only when to use each but how to convert between each other.






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#math #brianmclogan #trigonometry

[jackfinneymusic]

This might be the greatest teacher of all time

[channelsixtynine]

As always, Brian, your videos are great to watch. Can I add, that the length of the arc of a radian, is the same length as the two radii that join to it. If the arc was a straight line, it would be an equilateral triangle. Hence, instead of θ being 60° for an equilateral triangle, θ is only 57.295° for a radian. It also explains why π is 3.142 or ²²∕₇ .

[LeonidasParigoris]

But I have a question... if pi is the number of times the radius goes into half a circle, this also means pi is the number of times the diameter goes into the circumference? Then why would you say pi is 180? pi is also 360 then? I'm sure I'm missing something..

[ahhhhhh]

Hi, I need help with my homework it is 35 divided by 7293 and when I bring down I have 29 and 35 can not fit in with 29, so could you help me?

[jermiinus]

It would be nice if you could slow down just a tad - It feels like you need to be somewhere and you are running late and don't have time to take a breath...
Otherwise great content :)

[marianenarama]

Hi I'm super amazed how your videos worked. I am an aspiring math teacher and I like to watch your videos as my review to my upcoming licensure exam here in the Philippines!! God bless you ❤

[feynman]

The radian is not a unit of measure, it's a pure number.
Nothing measures 0.2 radians. You cannot localize 2 radians, 2 kilos, etc, on the real line. That is why the radian was introduced.

[ChristianEriksson]

Great video, but you need to save some of the punch-in's and punch-out's for other videos so you don't run out of them. Feel like the camera is attached to a yo-yo.