SOLUTION: A square plot of land has a building 70 ft long and 20 ft wide at one corner. The rest of the land outside the building forms a parking lot. If the parking lot has area 21,100 ft2,

Algebra ->  Rectangles -> SOLUTION: A square plot of land has a building 70 ft long and 20 ft wide at one corner. The rest of the land outside the building forms a parking lot. If the parking lot has area 21,100 ft2,      Log On


   



Question 878859: A square plot of land has a building 70 ft long and 20 ft wide at one corner. The rest of the land outside the building forms a parking lot. If the parking lot has area 21,100 ft2, what are the dimensions of the entire plot of land?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x = side length of the square region including where the building.

Parking Lot plus Building Lot = x%5E2 square feet.
21100%2B70%2A20=x%5E2
x%5E2=21100%2B1400
x%5E2=22500
x%5E2=100%2A9%2A25
x=10%2A3%2A5
highlight%28x=150%29, side length of the entire land plot.