A wire can exactly form a square with a side length of 3 cm. If it is changed into an equilateral triangle and there is no remainder, how many centimeters is the side length of the equilateral triangle?
一根铁丝可以正好围成一个边长是3厘米的正方形，如果改为成一个等边三角形且没有剩余，那么等边三角形边长是多少厘米？
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">4 * 1</gadget>
<output>4</output>

<result>4</result>