The area of the base of a conical part is 30 square centimeters and the height is 4 cm. What is the volume of a cylindrical part with the same base and height in cubic centimeters?
一个圆锥形零件的底面积是30平方厘米，高是4厘米，与它等底等高的圆拄形零件的体积是多少立方厘米．
<gadget id="calculator">30 * 4</gadget>
<output>120</output>

<result>120</result>