Divide the bottom surface of a cylinder with a height of 4 decimeters into several sectors on average, and then cut it to form an approximate cuboid with the same base and height. The perimeter of the cuboid is 6 decimeters longer than that of the cylinder. What is the volume of the cylinder?
把一个高4分米的圆柱体底面平均分成若干个扇形，然后切开，拼成一个与它等底等高的近似长方体，长方体的底面周长比圆柱的底面周长增加6分米，原来圆柱的体积是多少？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3.14 * 9 * 4</gadget>
<output>113.04</output>

<result>113.04</result>