Divide a cylinder into two evenly along its diameter, the surface area increases by 48 decimeters, the height of the cylinder is 6 decimeters, what is the volume in cubic decimeters.
把一个圆柱体沿直径平均分成两份，表面积增加了48平方分米，圆柱的高是6分米，体积是多少立方分米．
<gadget id="calculator">48 / 2 / 6</gadget>
<output>4</output>

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

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

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">12.56 * 6</gadget>
<output>75.36</output>

<result>75.36</result>