A rectangle is 30 meters long and 16 meters wide. The base of a parallelogram equal to its area is 20 meters. What is the height in meters?
一个长方形的长30米，宽16米，与它面积相等的平行四边形的底是20米，高是多少米．
<gadget id="calculator">16 / 20</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">30 * (4/5)</gadget>
<output>24</output>

<result>24</result>