The base of a cuboid is a square with an area of 3 square meters, and its side view is exactly a square. What is the side area of the cuboid in square meters?
一个长方体的底是面积为3平方米的正方形，它的侧面展开图正好是一个正方形，这个长方体的侧面积是多少平方米．
<gadget id="calculator">3 * 16</gadget>
<output>48</output>

<result>48</result>