Can anyone help with this? Math Problem 1: What is the total area of Xavier’s lot?
Use the formula for calculating the area of a trapezoid to help answer your question:
A= a+b2c or front of lot + back of lot/2
Once Bradley has the total area of the lot, he explains to Xavier that the county only allows for 40 percent of any lot to be covered with buildings.

Math Problem 2: What is Xavier’s available lot coverage? (In other words, how big a house can he build?)
Use the formula for calculating percentage to help answer your question:
40/100 = x/Total Area.