Question

A bicycle wheel has a radius of 13 inches. What is the distance the bicycle will travel after 30 revolutions of the wheel. Use 3.14 for PI

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Answer 1

= 2449.2 inches

Explanation:

1 revolution is equivalent to the circumference of the wheel

Circumference = 2πr

Radius = 13 inches

1 revolution = 2 × 3.14 × 13 inches

= 81.64 inches

30 revolutions = 81.64 inches × 30

= 2449.2 inches

Answer 2

2449.2 inches

Explanation:

The distance the bicycle wheel covers in one revolution is equal the the circumference of the bicycle wheel which is given by;

`C=2\pi r`

We substitute r=13 inches, which is the radius of the wheel
`\pi=3.14` into the formula to get;

`C=2(3.14)(13)`

`\Rightarrow C=81.64`

After 30 revolutions, the bicycle will cover;

`81.64* 30=2449.2in`