Cut a rectangle with a length of 10 cm, a width of 4 cm, and a height of 3 cm into a cylinder with the largest volume. What is the volume of this cylinder?
把长10厘米、宽4厘米、高3厘米的长方形削成一个体积最大的圆柱体，这个圆柱体的体积是多少．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">3.14 * (9/4) * 10</gadget>
<output>70.65</output>

<result>70.65</result>