A cuboid iron block with a volume of 42 cubic centimeters is melted and cast into a cone with a base area of 18 square centimeters. What is the height of the cone in centimeters?
将一个体积是42立方厘米的长方体铁块熔铸成底面积是18平方厘米的圆锥体，圆锥体的高是多少厘米．
<gadget id="calculator">3 / 18</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">42 * (1/6)</gadget>
<output>7</output>

<result>7</result>