mommagirl1204 mommagirl1204

30-03-2015
Mathematics

Answered

A wheel has a diameter of 21 inches.

Approximately how far does it travel in 3 revolutions?

A.
63 in.

B.
65.94 in.

C.
98.91 in.

D.
197.82 in.

Answer :

johnnywitt19 johnnywitt19

30-03-2015

It is D. 197.82 in because 21x3.14 that is 65.94 and then x that by 3

Answer Link

30-03-2015

Find the circumference and multiply it by 3.

C = pi * d

C = 3.14 * 21

C = 65.94

So it travels 65.94 inches in 1 revolution.

65.94 * 3 = 197.82

So it travels 197.82 inches in 3 revolutions.

Answer Link

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