In the diagram, O is the center of the circle, If ∠POQ = 80o and ∠PRQ = 5x, find the value of x.
- 4o
-
8o
- 16o
- 20o
- 32o
The correct answer is: B
Explanation
80o = 2 x 5x(angle at the center)=80o = 10x; x = 80o/10
= 8o