A cylinder and a cone have the same base and height, their volume difference is 12cm**3, what is the volume of the cone?
一个圆柱和一个圆锥等底等高，它们的体积差是12cm**3，圆锥的体积是多少．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<result>6</result>