The upper base of a trapezoid is 6 meters, the lower base is 14 meters, and the area is 50 meters. Find its height.
一个梯形的上底是6米，下底是14米，面积昰50米，求它的高．
<gadget id="calculator">6 + 14</gadget>
<output>20</output>

<gadget id="calculator">50 / 20</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">2 * (5/2)</gadget>
<output>5</output>

<result>5</result>