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## Answers

The diameter of a circle is 5 dm, find the circumference.

Formula:

πd(diameter) or 2π(3.14)r(radius)

Equation:

3.14(π) x 2=6.28 x 2.5 (radius= divide by 2,diameter=don't divide ) = 15.71 dm or

3.14 x 5 = 5.71 dm

It's pretty easy, actually, just be alert if the questions says diameter or radius

P.S.

Hope this helped you