Question

A bicycle tire has a diameter of 62 \text{ cm}62 cm62, start text, space, c, m, end text. What is the distance the bicycle tire travels in 101010 revolutions? Round your answer to the nearest \text{cm}cmstart text, c, m, end text.

Answer 1

Answer:1,947

Explanation:

i know it from khan

Answer 2

`1,947\ cm`

Explanation:

The correct question is

A bicycle tire has a diameter of 62 cm. What is the distance the bicycle tire travels in 10 revolutions? Round your answer to the nearest centimeter

step 1

Find the circumference of the bicycle tire

we know that

The circumference of a circle is equal to

`C=\pi D`

where

D is the diameter

we have

`D=62\ cm`

substitute

`C=\pi (62)`

`C=62\pi\ cm`

step 2

What is the distance the bicycle tire travels in 10 revolutions?

we know that

One revolution subtends a distance equal to the circumference of the bicycle tire

so

Multiply the circumference by 10

`(10)62\pi=620\pi\ cm`

assume

`\pi =3.14`

`620(3.14)=1,947\ cm`