(a) Find the total floor space (area) of the deck in square feet. (b) Find the cost in dollars of building the deck based on the estimated cost of $4.40 per ft2.

Question

Gary and Carolyn plan to build the deck shown.

12 ft

12 ft

18 ft

A deck consists of two rectangular wooden platforms. The platforms share a side; the right side of the first platform is attached to the left side of the second platform. The first platform is higher than the second.

1. The front side of the first platform is 18 ft.
2. The front side of the second platform is 12 ft.
3. The right side of the second platform is 12 ft.

(a) Find the total floor space (area) of the deck in square feet.

 

(b) Find the cost in dollars of building the deck based on the estimated cost of $4.40 per ft².

$ 

Answer 1

Draw and label a diagram (all dimensions!)

Determine the area of each rectangle

Add the areas. That is the answer to a)

Multiply total area by $4.40 /ft². That is the answer to b)