Question

question
the radius of a circle is 15.6 cm. find the circumference to the nearest tenth.
answer attempt 1 out of 2
c = cm submit answer

Explanation:

Step1: Recall the formula for circumference

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

Step2: Substitute the given radius into the formula

Given \(r = 15.6\) cm, substitute into \(C = 2\pi r\). So \(C=2\times\pi\times15.6\).

Step3: Calculate the value

\(C = 2\times3.14\times15.6\) (using \(\pi\approx3.14\)).
\(C = 6.28\times15.6\).
\(C=98. 968\).

Step4: Round to the nearest tenth

Rounding \(98.968\) to the nearest tenth. The digit in the hundredth place is \(6\), so we round up the digit in the tenth place. \(98.968\approx99.0\).

Answer:

\(99.0\) cm