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

Updated: 12/18/2022

Wiki User

∙ 12y ago

Best Answer

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

∙ 12y ago

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