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08-02-2017
Mathematics

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A wheel has a diameter of 21 inches. About how far does it travel if it makes 30 complete revolutions? Use 22/7 for pi

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apologiabiology apologiabiology

08-02-2017

circumference is the distance around the outside
therefor the circumference is the distance it travels in 1 revelotion

C=πd
d=21

c=21pi
use 22/7 for pio
c=21(22/7)
C=462/7
c=66
that's one revolution
times 30

66*30=1980in or about 165ft

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