a wire bent in the form of a circle of radius 42cm is cut and again bent in the form of a square . find the ratio of the areas of the regions enclosed by the circle and the square
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perimeter of the square= circumference of the circle
4×side= 2πr
4×side=2×22/7×42
4×side=2×22×6
Side=66cm
then the area of square=(side)²
=(66)²
=4356cm²
and the area of circle=πr²
=22/7×42×42
=22×6×42
=5544cm²
then ratio=5544/4356
=14/11
=14:11
I hope this may be helpful for u.
4×side= 2πr
4×side=2×22/7×42
4×side=2×22×6
Side=66cm
then the area of square=(side)²
=(66)²
=4356cm²
and the area of circle=πr²
=22/7×42×42
=22×6×42
=5544cm²
then ratio=5544/4356
=14/11
=14:11
I hope this may be helpful for u.
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7
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