Cut a cylinder along the height and the diameter of the bottom surface. It is known that the circumference of the bottom surface of each half cylinder is 10.28 cm, and the height is 6 cm. What is the volume of the original cylinder? π cubic centimeters.
把一个圆柱体沿高和底面直径剖开，已知每个半圆柱体的底面周长是10.28厘米，高6厘米，原来圆柱的体积是多少π立方厘米．
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>