The base of a cuboid is a square with a perimeter of 12 cm and its height is 8 cm. What is the volume of the cuboid?
一个长方体的底面是一个周长为12cm的正方形，它的高是8cm，这个长方体的体积是多少．
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">3 * 3 * 8</gadget>
<output>72</output>

<result>72</result>