Question

Please any help is necessary

Answer 1

Option D. 50 ft

Explanation:

we know that

The area of the figure is equal to the area of three rectangles

so

`A=18x+(48-36)(32-11)+(18)(32)`

`A=18x+(12)(21)+(18)(32)\\A=18x+828`

Remember that the area is given

`A= 1,728\ ft^2`

so

`18x+828=1,728`

solve for x

`18x=1,728-828\\18x=900\\x=50\ ft`