A trapezoid, the sum of the upper and lower bases is 10cm, the area is 60cm**2, what is its height in cm
一个梯形，上底与下底的和是10cm，面积是60cm**2，它的高是多少cm
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 * (1/5)</gadget>
<output>12</output>

<result>12</result>