Find the area of the trapezoid l. If the answer is not an integer, leave it in simplest radical form. The figure is not to scale.
A= Ft

Answer:
42 ft²
Step-by-step explanation:
Area of trapezoid = ½(a + b)h
a = 9 ft
b = 3 + 9 = 12 ft
h = √(5² - 3²) = 4 ft (pythagorean theorem)
Plug in the values
Area = ½(9 + 12)*4
Area = ½(21)*4 = 42 ft²