Question

Use the formula below to find how many square feet of grass are there on a trapezoidal field with a height of 25 ft and bases of 130 ft and 72 ft?

Answer 1

$A=h(\frac{b_1+b_2}{2})$

replacing the values provided by the problem:

$\begin{gathered} h=25ft \\ b_1=130ft \\ b_2=72ft \\ so\colon \\ A=25(\frac{130+72}{2}) \\ A=25(\frac{202}{2}) \\ A=25\cdot101 \\ A=2525ft^2 \end{gathered}$