A cone and a cylinder have equal base radii. The volume of the cone is 1/3 of the cylinder. It is known that the height of the cylinder is 6 centimeters. What is the height of the cone in centimeters?
底面半径相等的一个圆锥和一个圆柱，圆锥的体积是圆柱的(1/3)，已知圆柱的高是6厘米，那么圆锥的高是多少厘米．
<result>6</result>