A cuboid and a cylinder have the same volume. If the area of the base of the cuboid is (2/5) the area of the base of the cylinder, then the height of the cuboid is equal to the height of the cylinder.
一个长方体和一个圆柱体的体积相等，如果长方体的底面积是圆柱体底面积的(2/5)，那么长方体的高是圆柱体高的多少．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>