cylinder is sawed into 4 sections on average, each section is 5 cm long, and the surface area is increased by 56.52 square centimeters. What is the volume of the original cylinder.
一个圆柱体，将它平均锯成了4段，每段长5厘米，表面积增加了56.52平方厘米．原来圆柱体的体积是多少．
<gadget id="calculator">56.52 / 6</gadget>
<output>9.42</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">9.42 * 20</gadget>
<output>188.4</output>

<result>188.4</result>