Sew a lace around a circular tablecloth with a diameter of 1.5 meters, and the joint is 5 cm. How many meters is the length of this lace?
在直径1.5米的圆形桌布周围缝一条花边，接头处5厘米，这条花边长多少米．
<gadget id="calculator">3.14 * 1.5</gadget>
<output>4.71</output>

<gadget id="calculator">4.71 + 0.05</gadget>
<output>4.76</output>

<result>4.76</result>