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WAEC - Mathematics (1998 - No. 43)

In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50o. Use the diagram to answer question below. (take π = 3.142)
Calculate, correct to three significant figures, the area of sector OPQ
3.403cm2
5.350cm2
10.99cm2
157.1cm2
175.0cm2

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