Respuesta :

Answer:

The area of her front yard is 31.5 ft².

Step-by-step explanation:

Given:

Maria's front yard is shaped like a trapezoid with the dimension 5ft, 4ft and 7ft.

Now, to find the area of her front yard.

Dimension of front yard:

Base (a) = 5 ft.

Second base (b) = 4 ft.

Height (h) = 7 ft.

So, to getting the area of trapezoid we put formula:

[tex]Area\ of\ trapezoid=\frac{a+b}{2} h[/tex]

[tex]Area=\frac{5+4}{2} \times 7[/tex]

[tex]Area=\frac{9}{2} \times 7[/tex]

[tex]Area=4.5\times 7[/tex]

[tex]Area=31.5\ ft^2.[/tex]

Therefore, the area of her front yard is 31.5 ft².