Question

The radius of a ciecle is 13 cm. find its área to the nearest tenth

Answer 1

Given data:

The given radius of the circle is r=13 cm.

The expression for the area of the circle is,

`A=\pi(r)^2`

Substitute the given value in the above expression.

`\begin{gathered} A=\pi(13cm)^2 \\ =520.929cm^2 \\ \approx520.9cm^2 \end{gathered}`

Thus, the area of the circle is 520.9 square-cm.