A cone is 2 decimeters high. If it is cut vertically along the diameter of the base, the surface area increases by 20 decimeters square. What is the volume of the cone in cubic centimeters?
一个圆锥高2分米，沿着底面直径把它垂直锯开，表面积增加了20平方分米，这个圆锥的体积是多少立方厘米．
<gadget id="calculator">157_000 / 3</gadget>
<output>157_000/3 = around 52_333.333333</output>

<result>157_000/3 = around 52_333.333333</result>