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WAEC - Mathematics (1989 - No. 41)

In the diagram above, O is the center of the circle. If ∠POR = 114o, calculate ∠PQR
123o
118.5o
117o
114o
54o

Spiegazione

Reflex POR = 2PQR
Reflex PQR = 360o - 114o = 246o
PQR = 246/2 = 123o

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