Use a piece of iron wire to form a rectangle with a length of 14 cm and a width of 12 cm. What is the length of the wire in cm?
用一根铁丝刚好围成一个长14厘米，宽12厘米的长方形，这根铁丝长多少厘米．
<gadget id="calculator">14 + 12</gadget>
<output>26</output>

<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<result>52</result>