The diagram shows a sector OPQ of a circle with centre O and radius x cm. Angle
Question:
The diagram shows a sector OPQ of a circle with centre O and radius x cm.
Angle POQ is 0.8 radians. The point S lies on OQ such that OS = 5 cm.
The point R lies on OP such that angle ORS is a right angle.
Given that the area of triangle ORS is one-fifth of the area of sector OPQ, find
a. The area of sector OPQ is terms of x and hence show that the value of x is 8.837 correct to 4 significant figures,
b. The perimeter of PQSR.
c. The area of PQSR.
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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