If a cuboid with a length of 5 cm, a height of 5 cm, and a width of 4 cm is processed into the largest cylinder, what is the volume of the cylinder in cubic centimeters?
把一个长5厘米，高5厘米，宽4厘米的长方体加工成一个最大的圆柱体，这个圆柱体的体积是多少立方厘米．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">3.14 * (25/4) * 4</gadget>
<output>78.5</output>

<result>78.5</result>