If a cylinder with a height of 6 decimeters is cut into two smaller cylinders, the surface area increases by 31.4 square centimeters. What is the volume of this cylinder in cubic centimeters?
把一个高6分米的圆柱切成两个小圆柱，表面积增加31.4平方厘米，这个圆柱的体积是多少立方厘米．
<gadget id="calculator">31.4 / 2</gadget>
<output>15.7</output>

<gadget id="calculator">6 * 10</gadget>
<output>60</output>

<gadget id="calculator">15.7 * 60</gadget>
<output>942</output>

<result>942</result>