If the area of a trapezoid is 48 cm2, the upper base is 4 cm, and the lower base is 8 cm, what is the height of the trapezoid?
如果一个梯形的面积是48平方厘米，上底是4厘米，下底是8厘米，那么这个梯形的高是多少厘米
<gadget id="calculator">4 + 8</gadget>
<output>12</output>

<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">48 * (1/6)</gadget>
<output>8</output>

<result>8</result>