If the volume of a square cuboid whose base is 5 cm long is 30 cubic cm, what is its height?
一个底面边长是5厘米的正方形长方体的体积是30立方厘米，它的高是多少．
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">30 / 25</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>