Divide the bottom surface of a cylinder with a height of 8 cm into 16 parts on average, and form an approximate cuboid, and the surface area will increase by 80 square centimeters. What is the volume of this cylinder in cubic centimeters?
把高8厘米的圆柱底面平均分成16份，拼成近似的长方体，表面积就增加了80平方厘米，这个圆柱的体积是多少立方厘米．
<gadget id="calculator">80 / 2 / 8</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 8</gadget>
<output>628</output>

<result>628</result>