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Subjects>Math>Math & Arithmetic

What is the circumference of a circle if the diameter is 40cm?

Anonymous

∙ 13y ago

Updated: 12/18/2022

The circumference (C) of a circle is given by the formula C = 2πr

But, the diameter equals twice the radius so we can write C = πd....where d is the diameter.

So, C = 40π = 125.664 (3dp)

Wiki User

∙ 13y ago

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