There is a rectangular frame surrounded by wire, 32 cm long and 28 cm wide. Uncle Wang wants to change it into a square. What is the side length of the modified square frame?
有一个铁丝围成的长方形框架，长32厘米，宽28厘米．王叔叔要把它改成一个正方形，改后的正方形框架边长是多少？
<gadget id="calculator">32 + 28</gadget>
<output>60</output>

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

<gadget id="calculator">60 * (1/2)</gadget>
<output>30</output>

<result>30</result>