As given, the dimensions of the isosceles trapezoid are =
5 ft = this is the base 1
4 ft = this is the base 2.
1 ft by 1 ft = this is the height
Here, base 1 and base 2 are the parallel sides of the trapezoid
Area = {(sum of base 1 and 2)(height)}/2
= [tex]\frac{(5+4)*1}{2}[/tex]
= [tex]\frac{9}{2}[/tex]
Area = 4.5 square feet.
