A cone and a cylinder have the same base and height. If the volume of the cone is 15 cubic centimeters, what is the volume of the cylinder?
一个圆锥和圆柱等底等高，若圆锥的体积是15立方厘米，圆柱的体积是多少．
<gadget id="calculator">15 * 3</gadget>
<output>45</output>

<result>45</result>