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skad [1K]
3 years ago
12

The diameter of a bike is 90cm. How far would it travel after 5 revolutions?

Mathematics
1 answer:
Nookie1986 [14]3 years ago
7 0
We know that
[length of a circumference]=2*pi*r
diameter=90 cm-------------> r=d/2--------> r=45 cm
[length of a circumference]=2*pi*45----------> 90*pi cm

<span>with 1 revolution will go the length of the wheel</span>

if 1 revolution is-------------------> 90*pi cm
 5 revolution is--------------------> X
X=5*90*pi----------> 1413 cm

the answer is 1413 cm
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