Question

Find the reference angle for 210 degrees.

Answer 1

where is the angle 210 degrees?

in quadrant 1? in quadrant 2? in quadrant 3? in quadrant 4?

Answer 2

it doesnt say, this is the info
find the reference angle for 210 degrees
-90
-210
-30

Answer 3

I want you to point out where you think 210 degrees would point

Answer 4

so something like this

Answer 5

this is in quadrant 3

the rule for finding the reference angle (in this quadrant only) is

Reference Angle = x - 180

where x is the given angle

Answer 6

in this case, x = 210, so

Reference Angle = x - 180

Reference Angle = 210 - 180

Reference Angle = 30 degrees

Answer 7

notice how 180 + 30 = 210