a wire is in the form of square with side 7cm . It is bent into a circle find the radius of circle.
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Area of square = 49 cm^2
Area of circle = π r^2
πr^2 = 49
r = 3.949
Area of circle = π r^2
πr^2 = 49
r = 3.949
SparshGupta:
you answer is wrong
Answered by
3
Perimeter of circle = 2πr
Wire is of same length.
So, 2πr = 4*7
2 * 22/7 * r = 4 * 7
So, r = 7 * 7/11
= 49/11
= 4.45.
Wire is of same length.
So, 2πr = 4*7
2 * 22/7 * r = 4 * 7
So, r = 7 * 7/11
= 49/11
= 4.45.
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