A bamboo pole with a length of 5.7 meters is vertically inserted into the river water, the part that enters the mud is 0.8 meters, and the part above the water surface is 1.6 meters. How many meters is the water depth?
一根长5.7米长的竹竿垂直插入河水里，入泥部分0.8米，露出水面1.6米，水深多少米？
<gadget id="calculator">5.7 - 0.8 - 1.6</gadget>
<output>3.3</output>

<result>3.3</result>