00:01
Okay, so for this question, we're asked to find the reference angle of 210 degrees.
00:06
First, let me draw a coordinate plane so we can visualize 210 degrees.
00:12
If this is 0 degrees, this is 90 degrees, right here is 180 degrees, and this is 270 degrees, and of course, this comes back to 360 degrees.
00:28
210 degrees would be somewhere here.
00:31
So that would be 210 degrees.
00:39
The reference angle would be this angle right there.
00:43
Now, it's important to remember, if the angle is in the first quadrant, the reference angle is equal to that angle...