Question

Measuring Circles:Question 1

A bicycle wheel has a circumference of 66 inches. What is the

approximate radius of the wheel?

Round to the nearest hundredth, and use

7 ~ 3.14

Select one:

0

4.58 inches

0

10.51 inches

0

21.02 inches

O

103.62 inches

Answer 1

We have been given that a bicycle wheel has a circumference of 66 inches. We are asked to find the radius of the wheel.

We will use circumference of circle formula to solve our given problem.

`\text{Circumference of circle}=2\pi r`, where r represents radius if circle.

Upon substituting our given values, we will get:

`66=2\cdot 3.14\cdot r`

`66=6.28\cdot r`

`6.28\cdot r=66`

`(6.28\cdot r)/(6.28)=(66)/(6.28)`

`r=10.509554`

Upon rounding to nearest hundredths, we will get:

`r\approx 10.51`

Therefore, the radius of the wheel is approximately 10.51 inches.