Question

find the area of this circle.
use 3.14 for π.
area of a circle
a = πr²
a = ? m²
round your answer to the nearest tenth.

Explanation:

Step1: Find the radius

The diameter \(d = 6m\), and the radius \(r=\frac{d}{2}\). So \(r=\frac{6}{2}=3m\).

Step2: Calculate the area

Use the formula \(A = \pi r^{2}\). Substitute \(\pi = 3.14\) and \(r = 3\) into the formula: \(A=3.14\times3^{2}\). First, calculate \(3^{2}=9\), then \(A = 3.14\times9=28.26\).

Answer:

\(28.3m^{2}\)