Question

The radius of a circle is 12 millimeters. What is the circle's circumference? r=12 mm Use 3.14 for ​.

Answer 1

Circumference =

Explanation:

The equation for finding the circumference of a circle is: C=2πr

All we need to do is plug in for r of the equation (which is the radius) and solve.

C = 2(3.14)·12

C = 6.28 · 12

C = 75.36 mill.

That is the circumference.

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