A cylinder and a cone have the same base and height, and the volume of the cylinder is 30 cubic meters, what is the volume of the cone in cubic meters?
一个圆柱和一个圆锥等底等高，圆柱的体积是30立方米，那么圆锥的体积是多少立方米．
<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<result>10</result>