Question

the diameter of a circle is 9 m. find the circumference to the nearest tenth.

Explanation:

Step1: Recall the formula for circumference.

The formula for the circumference $C$ of a circle is $C = \pi d$, where $d$ is the diameter.

Step2: Substitute the given diameter.

Given $d = 9$ m, so $C=\pi\times9 = 9\pi$ m.

Step3: Calculate the value and round.

$9\pi\approx9\times3.14159 = 28.27431$ m. Rounding to the nearest tenth, we get $28.3$ m.

Answer:

$28.3$ m