Question

A wheel has a radius of 12 cm.

Answer 1

Result: Circumference = 150.72cm

Explanation:

To find the circumference, C, we will use this formula:

C = 2 * 3.14 * r

Substitute:

C = 2 * 3.14 * 12

Multiply:

2 x 12 = 24

24 x 3.14 = 75.36

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And since the question asked for two revolutions.

All we need to do is multiply 75.36 by 2:

75.36 x 2 = 150.72