manicaezilov7lynb1er manicaezilov7lynb1er

28-12-2016
Mathematics

Answered

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

Verified Answer :

Nirina7 Nirina7

29-12-2016

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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