Question on: WAEC Mathematics - 1989
In the diagram, O is the center of the circle, If ∠POQ = 80o and ∠PRQ = 5x, find the value of x.
A
4o
B
8o
C
16o
D
20o
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Correct Option: B
80o = 2 x 5x(angle at the center)
=80o = 10x; x = 80o/10
= 8o
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