A circular piece of wire is converted into a square side of 6.25 cm. If there is no loss or gain in its length, then find the radius of the circular wire.
Options:
A. 3.5 cm
B. 3.98 cm
C. 4.0 cm
D. 4.2 cm
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A circular piece of wire is converted into a square side of 6.25 cm. If there is no loss or gain in its length, then find the radius of the circular wire.
Options:
A. 3.5 cm
B. 3.98 cm
C. 4.0 cm
D. 4.2 cm
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=6.25×6.25=39.0625
area of circle=pi r2
= 39=pi r2
39%3.14 square root
=3.5cm