Question

how to find reference angle?

Answer 1

you see how fr way it is from either 180 or 0

Answer 2

0 to 90; is the reference angle

90 to 180; its 180-angle

180 to 270 if angle - 180

Answer 3

270 to 360 is just 360-angle

Answer 4

330; 360-330 = 30

275; 360 -275 = 85

Answer 5

ummm but what if its like 15pi/11?

Answer 6

pull it apart to see what it looks like;

11pi/11 + 4pi/11

pi + 4pi/11 ; the reference angle is 4pi/11

Answer 7

ohh my good ness thankkk you soo muchh!