Find the perimeter of semicircle and if area of the circle is given as 15400 cm
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Answer:
perimeter of circle =2πr
Step-by-step explanation:
area=πr^2
15400=22/7×r^2
r^2=15400×7/22
r^2=4900
r=√4900
r=70cm
perimeter=2πr
p=2×22/7×70
p=440cm
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