A parallelogram with a base of 4 cm has the same area as a square with a side of 4 cm. What is the height in cm corresponding to the base of the parallelogram?
一个底是4厘米的平行四边形与一个边长是4厘米的正方形面积相等，这个平行四边形中这条底对应的高是多少厘米．
<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">4 * 1</gadget>
<output>4</output>

<result>4</result>