Question

Find the area of this trapezoid. Be sure to include the correct unit in your answer.11 ft3 ft9 ft15 ft

Answer 1

`81ft^2`

Step-by-step explanation

The area of a trapezoid is generally given as:

`A=(1)/(2)(a+b)h`

where a = length of short base

b = length of long base

h = height

Therefore, we have that the area of the trapezoid is:

`\begin{gathered} A=(1)/(2)(3+15)\cdot9=(1)/(2)\cdot18\cdot9 \\ A=81ft^2 \end{gathered}`