Q11. - Algebra 1

Question

Find the area of each circle. Round to the nearest tenth.

Step-by-Step Solution

Answer

The area of the circle is $12.6 {\mathrm{ft}}^2$.

Step 1. Given information.

In the figure the radius of circle is 2 feet.

Step 2. Concept used.

The area of a circle with radius r is given by $A=\pi r^2$.

Step 3. Calculations.

$$\begin{gathered} A=\pi r^2 \\ =3.14\times 2^2 \\ =3.14\times 4 \\ =12.56 \end{gathered}$$

Rounding off to the nearest tenth, we get,

$A=12.6{\mathrm{ft}}^2$

Thus, the area of the circle is $12.6{\mathrm{ft}}^2$.