Question

WHOEVER RESPONDS FIRST WILL GET MARKED BEST.

A circle has a diameter of 14.5 inches. Using 3.14 for 1, what is the circumference of the circles, rounded to the nearest hundredth of an inch?
22.77 inches
45.53 inches
91.06 inches 165.05 inches

Answer 1

`c = 2 \pi \: r`

`c = 2 * 3.14 * 14.5`

`c = 91.06`

Answer 2

2nd option - 45.53 inches

Explanation:

Circumference of a circle when given the diameter is given by the formula :

`\pi d`

Since we are given a certain value for pi we use that and multiply it by the diameter to given the cirumference:

3.14 × 14.5 in =

45.53 inches

Therefore our answer is 43.53 inches (the 2nd option)