The area of the parallelogram is 5.4dm**2, the base is 1.2dm, and the height is dm.
平行四边形的面积是5.4dm**2，底是1.2dm，高是多少dm．
<gadget id="calculator">5.4 / 1.2</gadget>
<output>4.5</output>

<result>4.5</result>