rectangle is 80 cm long and 60 cm wide. Cut it into the largest square, what is its circumference in centimeters.
一个长方形长80厘米，宽60厘米．把它剪成一个最大的正方形，它的周长多少厘米．
<gadget id="calculator">60 * 4</gadget>
<output>240</output>

<result>240</result>