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??? - 2015 JUNE Q3 ANSWERS

3.
Picture
The diagram shows a sector AOB of a circle with centre O and radius 8 cm. The angle AOB is 1.2 radians. The points C and D lie on OA and OB respectively such that OC = 5.2 cm and OD = 2.6 cm. CD is a straight line.
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(i) Find the area of the shaded region ACDB. [4]

(ii)
Find the perimeter of the shaded region ACDB. [5] 

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