4.8-meter-long bamboo pole is inserted straight into the pool. The part of the bamboo pole that enters the mud is 0.3 meters, and the part above the water is 1.9 meters. How deep is the pool?
一根4.8米长的竹竿直插入水池中，竹竿的入泥部分是0.3米，露出水面的部分是1.9米，池水深多少？
<gadget id="calculator">4.8 - 0.3 - 1.9</gadget>
<output>2.6</output>

<result>2.6</result>