A wireis in the form of square with 22 cm as a side . It is reshaped into a circle ,calculate its area
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Length or perimeter of square = 22 x 4 = 88 cm
That means its equal to cicrumference of circle formed
Circumference of circle = 2 π r
2 x 22/7 x r = 88
r = 88/6.28 = 14.01 cm
Now area = π r²
22/7x 14.01²
= 616 cm²
That means its equal to cicrumference of circle formed
Circumference of circle = 2 π r
2 x 22/7 x r = 88
r = 88/6.28 = 14.01 cm
Now area = π r²
22/7x 14.01²
= 616 cm²
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Perimeter of square =22× 4 =88 = perimeter of circle
but,2×22/7×r = circumference formula
so substituting we get 2×22/7×r=88
r=2
22/7×r×r=22/7×2×2=88/7
therefore area = 88/7
but,2×22/7×r = circumference formula
so substituting we get 2×22/7×r=88
r=2
22/7×r×r=22/7×2×2=88/7
therefore area = 88/7
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