A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions? A. 188.4 cm B. 94.2 cm C. 47.1 cm D. 376.8 cm

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asked Jun 18, 2017 91.1k views

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S P Sharan · Answer 1 · 2017-06-23T17:57:20+0000

Given:
radius = 15 cm

1 revolution is equal to 1 turn of the wheel. Thus, we need to get the circumference of the wheel.

circumference = 2 π r
C = 2 * 3.14 * 15cm
C = 94.2 cm

94.2 cm * 4 revolutions = 376.8 cm CHOICE D.

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions? A. 188.4 cm B. 94.2 cm C. 47.1 cm D. 376.8 cm

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