The gatepost of the school is a cuboid, the bottom is a square with a side length of 80 cm, and a height of 3 meters. What is the volume of a pair of such gateposts in cubic meters?
学校的门柱是一个长方体，底面是边长为80厘米的正方形，高为3米，求一对这样的门柱体积为多少立方米？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * (4/5) * 3 * 2</gadget>
<output>96/25 = around 3.84</output>

<result>96/25 = around 3.84</result>