Question

find the area.
a = ? cm²
a = πr²
use π = 3.14

Explanation:

Step1: Substitute the radius into the formula

The formula for the area of a circle is \(A = \pi r^{2}\), and \(r = 6\) cm, \(\pi=3.14\). So \(A=3.14\times6^{2}\).

Step2: Calculate \(6^{2}\)

\(6^{2}=6\times6 = 36\). Then the formula becomes \(A = 3.14\times36\).

Step3: Multiply

\(3.14\times36=(3 + 0.14)\times36=3\times36+0.14\times36=108 + 5.04=113.04\).

Answer:

\(113.04\)