Question

The radius of a circle measures 12 mm. What is the circumference of the circle?

Use 3.14 for 11, and do not round your answer. Be sure to include the correct unit in your answer.
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Answer 1

75.36 mm

Explanation:

Circumference = 2πr

= 2 (3.14) (12)

= 75.36 mm

Answer 2

75.36 mm

Explanation:

Using 3.14 for pi, the equation for circumference is C = 2(3.14)(r)

fill in 12 for r and solve the equation

C = 2(3.14)(12)

C = 6.28(12)

C = 75.36