A cuboid is a square with a base perimeter of 8dm, and its sides are also a square. What is the surface area of this cuboid in dm**3.
一个长方体，底面周长为8dm的正方形，侧面展开也是一个正方形，这个长方体的表面积是多少dm**3．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">8 + 64</gadget>
<output>72</output>

<result>72</result>