If the perimeter of the cuboid is a rectangle with a perimeter of 3 decimeters, its side view is exactly a square. What is the side area of the cuboid in square meters?
长方体的底面周长3分米的长方形，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 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">3 * (3/100)</gadget>
<output>9/100 = around 0.09</output>

<result>9/100 = around 0.09</result>