Question

5n 8n 10n 15n

Explanation:

Step1: Recall the formula for the circumference of a circle

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

Step2: Identify the radius from the diagram

From the diagram, the radius \(r = 5\).

Step3: Calculate the circumference

Substitute \(r = 5\) into the formula \(C = 2\pi r\).
\(C=2\pi\times5 = 10\pi\)

Answer:

\(10\pi\)