Question

what is the area of a circle with the radius 11cm

Answer 1

The area of a circle is calculated as follows:

$A=\pi r^2$

where r is the radius of the circle.

Substituting with r = 11 cm, we get:

$\begin{gathered} A=\pi\cdot11^2 \\ A=\pi\cdot121 \\ A\approx380.1\operatorname{cm}^2 \end{gathered}$