A bamboo pole is inserted vertically into the river. The part of the bamboo pole that enters the mud is 0.6 meters, and the part above the water is 0.72 meters. The depth of the river is 2.2 meters. How many meters is this bamboo pole?
一根竹竿竖直插入河中，竹竿入泥的部分是0.6米，露出水面的部分是0.72米，河水深2.2米．这根竹竿长多少米？
<gadget id="calculator">0.6 + 0.72 + 2.2</gadget>
<output>3.52</output>

<result>3.52</result>