Cutting a 1.5-meter-long cylindrical steel into two sections on average increases the total surface area by 12.56 square decimeters. What is its volume.
把一根长1.5米的圆柱形钢材平均截成2段，表面积总和增加了12.56平方分米．它的体积是多少．
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

<gadget id="calculator">1.5 * 10</gadget>
<output>15</output>

<gadget id="calculator">6.28 * 15</gadget>
<output>94.2</output>

<result>94.2</result>