A square table with a side length of 8 decimeters is inlaid with decorative strips, and the length of this decorative strip is at least how many decimeters.
将一个边长是8分米的方桌四周镶上装饰条，这根装饰条至少长多少分米．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>