The height of a cylinder is 5 cm. The cylinder is divided into two equal halves vertically along the height through the center of the bottom surface. The surface is increased by 60 square centimeters. Find the volume of the cylinder.
一个圆柱的高是5厘米，过底面圆心沿高垂直将圆柱分成相等的两半，表面增加了60平方厘米，求圆柱的体积．
<gadget id="calculator">60 / 2 / 5</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 5</gadget>
<output>141.3</output>

<result>141.3</result>