Answer:
Rational
Step-by-step explanation:
(180-30)=150
150/3=50
the two equal angles are 50 and the other is 80
Answer:
all but the second statement are correct
Step-by-step explanation:
The n roots of unity are evenly spaced around a circle of radius 1 in the complex plane. One of the roots is always 1. If n is even, -1 will also be a root.