Question

the perimeter of a semi circle is 108 CM. find the radius and area of the circle

Answer 1

circumference of circle = 2πr for semicircle it half of it then,

108=2πr/2
108=πr
108=22/7×r
108×7/22=r
r=34.37=34


area of circle = πr^2
=πr^2
=3631.68
=3632 cm^2


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