Write the Equation to be used in getting the circumference of the given 4.2 cm
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the formula for circumference of a circle is
2πr
that is 2×π×radius
if
4.2 is radius then substitute directly as radius
but if 4.2 is diameter then divide it by 2 to get the radius
4.2/2=2.1
2πr
that is 2×π×radius
if
4.2 is radius then substitute directly as radius
but if 4.2 is diameter then divide it by 2 to get the radius
4.2/2=2.1
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