A bamboo pole is inserted straight into the bottom of the pool, the wet part is 1.8 meters, turned around and inserted straight into the bottom of the pool, only half of which is 1.4 meters dry, how long is this bamboo pole?
把一根竹竿直插入水池底，浸湿部分1.8米，掉过头来直插入水池底，只有一半还多1.4米是干的，这根竹竿长多少米？
<gadget id="calculator">1.8 + 1.8 + 1.4</gadget>
<output>5</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>