The diagram shows the sector OAB of a circle with centre O and radius 20m. Angle AOB
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The diagram shows the sector OAB of a circle with centre O and radius 20m. Angle AOB = π/2 radian. The straight line CD divides the sector into two regions which have equal areas and the lengths of OC and OD are equal. Calculate the exact length of OC.
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ANSWER We know that angle AOB 2 so angle AOD angle COB 4 ...View the full answer
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Related Book For 
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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