In Exercises, solve the given problems.Each of two walls (with rectangular windows) of an...

In Exercises, solve the given problems.

Each of two walls (with rectangular windows) of an A-frame house has the shape of a trapezoid as shown in Fig. 2.72. If a gallon of paint covers 320 ft , how much paint is required to paint these walls? (All data are accurate to two significant digits.)

Fig. 2.72