The area of the parallelogram is 1.2 square meters, the height is 0.4 meters, and the base is how many meters.
平行四边形的面积是1.2平方米，高是0.4米，底是多少米．
<gadget id="calculator">1.2 / 0.4</gadget>
<output>3</output>

<result>3</result>