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Find the area of the shaded sector. Leave answer in terms of pie

Find the area of the shaded sector. Leave answer in terms of pie-example-1
User Qpingu
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2 Answers

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 a) 25 pi / 2 m^2 hoped i helped
User RDR
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A = pi r^2
A = 5^2 pi
A = 25 Pi

so semi-circle = 25 pi / 2

answer is a) 25 pi / 2 m^2