the leangth of the boundary of a circular pond is 30 m .find the area of the pond.
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Answer :
perimeter of circle = 30
2πr= 30
r=30*7/2*22
r=15*7/22
r=105/22
r= 4.7 cm
therefore area is πr²
22/7*47/10*47/10
area = 69.42m²
perimeter of circle = 30
2πr= 30
r=30*7/2*22
r=15*7/22
r=105/22
r= 4.7 cm
therefore area is πr²
22/7*47/10*47/10
area = 69.42m²
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