If a cone is submerged in a cylindrical container filled with water with a base area of 30 square centimeters and the water level rises by 4 cm, what is the volume of the cone in cubic centimeters?
把一个圆锥体浸没在底面积是30平方厘米的圆柱形盛有水的容器里，水面升高4厘米，这个圆锥体的体积是多少立方厘米．
<gadget id="calculator">30 * 4</gadget>
<output>120</output>

<result>120</result>