What is the radius of circle, which touches all the sides of a square internally touches all the sides of a square internally when the perimeter of the square is 60 cm?
a)30 cm b)15cm
c)7.5cm d)225 cm
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The radius of circle is 7.5 cm
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c) 7.5 cm
this is because side=60/4=15
hence diameter=15cm
and radius=7.5cm
this is because side=60/4=15
hence diameter=15cm
and radius=7.5cm
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