A cylinder and a cone are equal in volume and height, and the base area of the cone is known to be 12m**2; then what is the base area of the cylinder in m**2?
一个圆柱和一个圆锥体积相等，高也相等，已知圆锥的底面积是12m**2；那么圆柱的底面积是多少m**2．
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<result>4</result>