## Geometry: Common Core (15th Edition)

The formula for the area of a trapezoid is A=$\frac{1}{2}$h($b_{1}$+$b_{2}$) You are given the total area of 100, and the total of the bases added together to 25 A=$\frac{1}{2}$h($b_{1}$+$b_{2}$) 100=$\frac{1}{2}$h(25) Multiply each side by 2 200=25h Divide each side by 25 8=h