The base of one set of opposite sides of a parallelogram is 5cm, the height is 9cm, and the base of the other set of opposite sides is 6cm, what is the corresponding height in cm?
平行四边形一组对边的底是5cm，高是9cm，另一组对边的底是6cm，它对应的高是多少cm．
<gadget id="calculator">9 / 6</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">5 * (3/2)</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>