Question

Please any help is necessary

Answer 1

Answer:

Option D. 50 ft

Step-by-step 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

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