A piece of iron wire can be made into a rectangle with a length of 6 cm and a width of 4 cm. If this wire is made into a square, what is the side length of the square?
一根铁丝可以做成一个长是6厘米，宽是4厘米的长方形，把这根铁丝做成正方形，那么这个正方形的边长是几厘米？
<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 * (1/2)</gadget>
<output>5</output>

<result>5</result>