The area of the base of the cylinder is 9 square decimeters and the height is 3 meters. What is the volume of the cone with the same base and height?
圆柱的底面积是9平方分米，高是3米，和它等底等高的圆锥的体积是多少．
<gadget id="calculator">10 / 3</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">9 * 3 * (10/3)</gadget>
<output>90</output>

<result>90</result>