The surface area of a cylinder cut vertically along the diameter of the bottom surface increases by 24 square centimeters. If two small cylinders are cut horizontally along the parallel bottom surface, the surface area increases by 25.12 square centimeters. If this cylinder is cut into the largest cone, the volume of the cone How many cubic centimeters.
一个圆柱沿着底面直径竖直切开表面积增加24平方厘米，如果沿着平行底面横着切成两个小圆柱，表面积增加25.12平方厘米，如果将这个圆柱切成一个最大的圆锥，则圆锥的体积是多少立方厘米．
<gadget id="calculator">25.12 / 2</gadget>
<output>12.56</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">24 / 2 / 4</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12.56 * 3 * (1/3)</gadget>
<output>12.56</output>

<result>12.56</result>