Problem

Find the circumference of a circle with a radius of 7 cm.

Answer

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Answer

Calculate the result: \(C = 14\pi\) cm

Steps

Step 1 ：The formula to calculate the circumference of a circle is \(C = 2\pi r\)

Step 2 ：Substitute the given radius of the circle into the formula: \(C = 2\pi (7)\)

Step 3 ：Calculate the result: \(C = 14\pi\) cm

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