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5-7 Circles, Circumference, and Arc Length

pi=3.141592654

Circumference of a Circle

Circumference=pi times diameter

Diameter=2(radus)

Leave answer in terms of pi. NO DECIMALS!! Round if you have to. Use the pi key on your calcualtor.

Problem 5-7

If the diameter is 25 centimeters, what is the circumference? A- 78.5 centimeters

B- 24 centimeters

C- None of the above