Question

the diameter of a circle is 6 centimeters. What is the area?give the exact answer in simplest form.

Answer 1

SOLUTION

The diameter of the circle is 6cm

The area of a circle is given as

$A=\pi r^2$

The radius of the circle is

$r=\frac{6}{2}=3$

Therefore, the area of the circle is

$A=\pi\times3^2^{}$

This gives

$\begin{gathered} A-9\pi \\ A=28.3 \end{gathered}$

Therefore, the area of the circle is 28.3 cm²