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In the diagram, OAB and OCD are sectors of a circle with centre O and radius 12

Question:

In the diagram, OAB and OCD are sectors of a circle with centre O and radius 12 cm. Angle AOB = angle COD, AOD is a straight line and BC = 8 cm. Calculate

i) Angle BOC in radians

ii) The perimeter of the shaded shape

iii) The area of the shaded shape.

Transcribed Image Text:

A B 8cm 0 с 12 cm D

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ANSWER i To find the angle BOC we need to first find the measure of angles AOB and COD Since angle AOB angle COD we can find the measure of one of the...View the full answer


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