Question

A window frame in the shape of a trapezoid has bases 4 feet long and 3 feet long. It's height is 3 feet. What is the area of the glass needed for the window?

Answer 1

$\text{area of a trapezoid =}\frac{a+b}{2}\cdot h$

Where:

h= heigth = 3 ft

a = short base =3 ft

b= long base = 4ft

Replacing:

$A=\frac{3+4}{2}\cdot3=10.5\text{ ft2}$