Deepa took a wire of length of 28 cm and bent it into the shape of a circle .find the radius and area of the circle if the same wire is bent into the shape of the square . Find the length of each side and its area . Which figure encloses more area and by how much
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when the wire is bent into the circle:
radius of circle:
circumference=πd
cf=28cm
28=πd
d=28÷3.14
d=8.9
r=4.45cm.............1
area of circle=πr^2
=3.14*(4.45)^2
=62.172cm^2..............2
when it is bent into the square:
side=28÷4=7cm
area=s*s
=7*7
=49cm^2
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