Xiaohong wraps an aluminum ribbon around a round table with a diameter of 1.2m. The joint is 5cm. How long is this aluminum ribbon in m?
小红给直径是1.2m的圆桌周围包装一块铝彩带，接头处5cm，这条铝彩带长多少m．
<gadget id="calculator">3.14 * 1.2</gadget>
<output>3.768</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">3.768 + (1/20)</gadget>
<output>3.818</output>

<result>3.818</result>