Question

1. A circle has a diameter of 7.6 feet. Which measurement is closest to the circumference of this circle? Use 3.14 to approximate π.

a. 23.9 ft
b. 45.3 ft
c. 47.7 ft
d. 11.9 ft

Answer 1

23.9

Explanation:

Answer 2

a. 23.9 ft

Explanation:

The circunference of a circle is given by the following formula:

`C = 2\pi r`

In which r is the radius.

A circle has a diameter of 7.6 feet.

The radius is half the diameter. So

`r = (7.6)/(2) = 3.8`

The circunference is

`C = 2\pi r = 2*3.14*3.8 =23.864`

So the correct answer is:

a. 23.9 ft