Process a cuboid wood whose length, width, and height are 4cm, 5cm, and 6cm respectively into a cylinder with the largest volume. What is the volume of this cylinder in cubic centimeters?
将一个长、宽、高分别是4cm，5cm，6cm的长方体木料加工成一个体积最大的圆柱，这个圆柱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>