Insert a bamboo pole vertically into the bottom of a livestock pond, the wet part is 1.1 meters, turn around and insert the other end vertically to the bottom of the pool, so that the part that is not soaked is 0.2 meters less than half of the total length. How many meters is the unsoaked part of this bamboo pole?
把一根竹竿垂直插到一个畜水池的池底，浸湿部分是1.1米，掉过头把另一端垂直插到池底，这样没有浸湿的部分比全长的一半还少0.2米．这根竹竿没有浸湿的部分长多少米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 - 0.2</gadget>
<output>1.8</output>

<result>1.8</result>