16pi/5 = 16*180/5 = 576o = 1.6 Rev.
A = 0.6Rev * 360o/Rev = 216o, Q3.
In Q3, A - Ar = 180o
216 - Ar = 180
Ar = 36o = Reference angle.
Ar = (36o/360o) * 2pi = 2pi/10 Radians.
Notes:
In Q2, A + Ar = 180o
In Q4, A + Ar = 360o
theta = 16 pi / 5
How to find the reference angle in radians? Do i have to use degree to pi conversion?
1 answer
1 answer