9709 P13 - Nov 2020 - Q9
201
In the diagram, arc AB is part of a circle with centre O and radius 8 cm. Arc BC is part of a circle with centre A and radius 12 cm, where AOC is a straight line.
(a) Find angle BAO in radians.
(b) Find the area of the shaded region.
(c) Find the perimeter of the shaded region.
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