Divide the bottom surface of a cylinder into several sectors on average, then cut it and put it together to form an approximate cuboid. The surface area is increased by 300 square centimeters compared to the original one. The height of the cylinder is known to be 15 centimeters. What is the volume of the cylinder in cubic centimeters?
把一个圆柱体的底面平均分成若干个扇形，然后切开拼成一个近似的长方体，表面积比原来增加了300平方厘米，已知圆柱的高是15厘米，圆柱的体积是多少立方厘米？
<gadget id="calculator">300 / 2 / 15</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 15</gadget>
<output>4_710</output>

<result>4_710</result>