The side length of a cube is 0.4 meters, what is the surface area of the cube in square meters?
一个正方体的棱长是0.4米，这个正方体的表面积是多少平方米？
<gadget id="calculator">0.4 * 0.4 * 6</gadget>
<output>0.96</output>

<result>0.96</result>