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8 June, 10:18

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.

376.8 cm

D.

47.1 cm

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Answers (1)
  1. 8 June, 10:36
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    1 revolution is 2xPixr

    it is 2xPixr=2x 3.14 x 15=94. 2cm

    for 4 revolutions

    it is 94. 2cmx4 = 376.8 cm

    the answer is C : 376.8 cm
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