In the diagram above O is the center of the cir... - WAEC Mathematics 1992 Question
In the diagram above, O is the center of the circle PQRS and ∠QPS = 36°. Find ∠QOS
A
36o
B
72o
C
108o
D
144o
correct option: b
< QOS = 2 < QPS (angle subtended at the centre)
\(\therefore\) < QOS = 2 x 36° = 72°
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