Question

question the radius of a circle is 19.5 m. find the circumference to the nearest tenth.

Explanation:

Step1: Recall circumference formula

The formula for the circumference of a circle is $C = 2\pi r$, where $r$ is the radius.

Step2: Substitute the given radius

Substitute $r = 19.5$ m into the formula:
$C = 2\pi \times 19.5$

Step3: Calculate the value

First compute $2 \times 19.5 = 39$, so $C = 39\pi$. Using $\pi \approx 3.1416$, we get $C \approx 39 \times 3.1416 = 122.5224$

Step4: Round to nearest tenth

Round 122.5224 to the nearest tenth: $122.5$

Answer:

122.5 m