Question

find the circumference of this circle. use 3.14 for π. circumference of a circle c = πd = 2πr c = ? m round your answer to the nearest tenth.

Explanation:

Step1: Identify the formula

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

Step2: Substitute the values

Given \(r = 9\) m and \(\pi=3.14\), substitute into the formula: \(C = 2\times3.14\times9\).

Step3: Calculate the result

First, \(2\times9 = 18\), then \(18\times3.14=56.52\). Rounding \(56.52\) to the nearest tenth gives \(56.5\).

Answer:

\(56.5\) m