Question

a wire bent and form a square encloses an area of 121 CM square if the same why takes the shape of circle then find the area of a circle​

Answer 1

Area of square =121cm square

a^2=121cm

a=11cm

Perimeter =4a = 4×11=44cm

Now,

Perimeter of square = Circumference of circle

Then,

2 ×22/7×r = 44cm

r= 44×7/2×22 =7cm

Now,

Are of circle = 22/7 ×7×7

Area of circle =154 cm square

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