Question

find the missing quantities for the following circle. use the $pi$ key for $pi$.
radius diameter circumference
____ 14.6 m ____
radius = 7.3 m
(type an integer or a decimal.)
circumference $approx$ (square) m
(type an integer or decimal rounded to the nearest tenth as needed.)

Explanation:

Step1: Recall the formula for the circumference of a circle

The formula for the circumference of a circle is $C = 2\pi r=\pi d$, where $C$ is the circumference, $r$ is the radius and $d$ is the diameter. We know $d = 14.6$ m and we can also use $r=7.3$ m.

Step2: Calculate the circumference

Substitute $d = 14.6$ into the formula $C=\pi d$. So $C=\pi\times14.6\approx3.14159\times14.6\approx45.9$.

Answer:

$45.9$