Question

1. find the area of a circle if the radius is 5 cm.

Explanation:

Step1: Recall the formula for the area of a circle

The formula for the area of a circle is \(A = \pi r^{2}\), where \(r\) is the radius of the circle.

Step2: Substitute the given radius into the formula

Given \(r = 5\space cm\), substitute into the formula: \(A=\pi\times(5)^{2}\).

Step3: Calculate the value

\(A = 3.14\times25\) (taking \(\pi = 3.14\)).
\(A=78.5\space cm^{2}\)

Answer:

\(78.5\space cm^{2}\)