piece of cylindrical wood with a base circumference of 18.84 cm and a height of 5 cm is cut into the largest cuboid. What is the volume of this cuboid?
一段圆柱形木料，底面周长18.84厘米，高5厘米，把它削成一个最大的长方体，这个长方体的体积是多少？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 * (3/2) * 4</gadget>
<output>18</output>

<gadget id="calculator">18 * 5</gadget>
<output>90</output>

<result>90</result>