If the side length of a square is 8 cm, what is its perimeter in meters?
一个正方形的边长是8厘米，它的周长是多少米．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<result>8/25 = around 0.32</result>