To build a cuboid pool capable of storing 18 cubic meters of water, the bottom area of the pool measured from the inside is 7.5 square meters, how high must the pool be built at least?
要建一个能蓄水18立方米的长方体水池，从里面量得这个水池的底面积是7.5平方米，这个水池至少要建多高？
<gadget id="calculator">18 / 7.5</gadget>
<output>2.4</output>

<result>2.4</result>