How to find the area of a trapezoid Practice Test

$area=\left( \frac{b1+b2}{2} \right)\times h$

$area=\left( \frac{b1\times b2}{2} \right)\times h$

$area=\left( \frac{h}{2} \right)\times b1+b2$

$area=\left( \frac{b1+b2}{h} \right)\times 2$