The formula to find the area of a rectangle with dimensions B and H is:
[tex]A=B\times H[/tex]A)
To find the area of the yard, substitute B=85ft and H=55ft:
[tex]\begin{gathered} A=85ft\times55ft \\ =4675ft^2 \end{gathered}[/tex]Therefore, the area of the yard is 4675 ft^2.
B)
To find the area of the swimming pool, substitute B=20ft and H=30ft:
[tex]\begin{gathered} A=20ft\times30ft \\ =600ft^2 \end{gathered}[/tex]Therefore, the area of the swimming pool is 600 ft^2.
C)
To find the area of the yard that is not part of the swimming pool, substract the area of the swimming pool from the area of the yard:
[tex]4675ft^2-600ft^2=4075ft^2[/tex]Therefore, the area of the yard that is not part of the swimming pool is 4075 ft^2.