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A semicircle has a diameter of 20 cm.

Work out the perimeter of the semicircle.

Take the value of π to be 3.14

 Nov 18, 2020
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The radius = 10

 

Perimeter of full circle = 2pi * r

 

We only need  1/2 of this

 

Perimeter  =   pi * radius  =   3.14 *  10  =    31.4 cm

 

cool cool cool

 Nov 18, 2020

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