The area of a trapezoid is 24cm**2, the sum of the upper and lower bases is 12cm, what is the height
一个梯形的面积是24cm**2，上底和下底的和是12cm，高是多少
<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">24 * (1/6)</gadget>
<output>4</output>

<result>4</result>