cuboid and a cone have the same base and height. If the volume of the cone is 18 cubic centimeters, what is the volume of the cuboid?
一个长方体和一个圆椎体等底等高，若圆椎体积是18立方厘米，则长方体的体积是多少
<gadget id="calculator">18 * 3</gadget>
<output>54</output>

<result>54</result>