The volume of a cone is equal to the volume of a cylinder. It is known that the base area of the cylinder is (2/3) the area of the base of the cone, and the height is 5 cm. What is the height of the cone in cm?
一个圆锥体积与一个圆柱体积相等，已知圆柱的底面积是圆锥底面积的(2/3)，高是5厘米，圆锥的高是多少厘米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 5 * 3</gadget>
<output>10</output>

<result>10</result>