Question

find the area.
3 ft.
9 ft.
4 ft.
5 ft.

Explanation:

Step1: Divide the figure

Divide the figure into two rectangles.

Step2: Calculate the area of the first rectangle

The first rectangle has length \(5\ \text{ft}\) and width \(4\ \text{ft}\). Using the formula for the area of a rectangle \(A = l\times w\), we have \(A_1=5\times4 = 20\ \text{ft}^2\).

Step3: Calculate the length of the second rectangle

The length of the second rectangle is \(9 - 4=5\ \text{ft}\), and the width is \(3\ \text{ft}\).

Step4: Calculate the area of the second rectangle

Using the formula \(A = l\times w\), we have \(A_2 = 3\times5=15\ \text{ft}^2\).

Step5: Calculate the total area

The total area \(A=A_1 + A_2=20 + 15=35\ \text{ft}^2\).

Answer:

\(35\ \text{ft}^2\)