Question

Find the area of each figure. Round to the nearest tenth if necessary.

A square with side length of 9 feet

Short answer

The area of the square is $81{\mathrm{feet}}^2$.

Step-by-step solution

Step 1. Given information.

A square with side length of 9 feet.

Step 2. Concept used.

The area of the square is square on its side. Let the side of the square be of lengthl. It is mathematically denoted by $A=l^2$.

Step 3. Calculations.

$$\begin{gathered} A=l^2 \\ ={\left(9\mathrm{feet}\right)}^2 \\ =81{\mathrm{feet}}^2 \end{gathered}$$

Thus, the area of the square is $81{\mathrm{feet}}^2$.