A cylinder with a base area of 15 square centimeters and a height of 3 centimeters is the volume of a cone of equal height and volume
一个圆柱底面积是15平方厘米，高3厘米，和它等高等体积的圆锥体积是多少平方厘米
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">15 * 1</gadget>
<output>15</output>

<result>15</result>