A cone and a cylinder have the same base area. It is known that the volume ratio of the cone to the cylinder is 1:7, and the height of the cone is 2.4 cm. What is the height of the cylinder in cm?
一个圆锥与一个圆柱的底面积相等，已知圆锥与圆柱的体积比是1：7，圆锥的高是2.4厘米，则圆柱的高是多少厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 2.4 * 7</gadget>
<output>5.6</output>

<result>5.6</result>