The area of a trapezoidal vegetable plot is 48m**2, the upper base is 8m, and the lower base is 16m. What is the height of this vegetable plot?
一块梯形菜地的面积是48米**2，上底是8米，下底是16米，这块菜地的高是多少米？
<gadget id="calculator">8 + 16</gadget>
<output>24</output>

<gadget id="calculator">2 / 24</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">48 * (1/12)</gadget>
<output>4</output>

<result>4</result>