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23-06-2020
Mathematics

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Find the perimeter of this semi-circle with radius, r = 25cm. Give your answer as an expression in terms of π .

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EzekielSuresh EzekielSuresh

23-06-2020

perimeter of circle

2πr

perimeter of semi circle

2πr ÷ 2

=2π(25) ÷ 2

= 50π ÷ 2

= 25π

Ans = 25π

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