The base of a cuboid is a square of 5 square meters, and its side view is exactly a square. What is the lateral area of this cuboid in square meters?
一个长方体的底面是5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">5 * 16</gadget>
<output>80</output>

<result>80</result>