The area of the base of a cylinder is 30cm**2 and the height is 3m, what is the volume of the cylinder in cm**3.
一个圆柱的底面积是30cm**2，高是3m，这个圆柱的体积是多少cm**3．
<gadget id="calculator">30 * 3</gadget>
<output>90</output>

<result>90</result>