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.