A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with

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pbearyvhf11

Mathematics

Question Description

A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of 7 ft. How far does the skater go one time around the figure eight?

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Explanation & Answer

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The circumfrence is the distance around the circle. By definition, pi is the ratio of the circumfrence to the diameter. the diameter is 2 times the radius. So, C=2(pi)(r). That's one of the circles. The other circle is same as the first. Multiple it by 2. so the answer is 4(pi)(r)

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ivpxl qnivq (178)
Boston College

Anonymous
Awesome! Perfect study aid.

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