In a right triangle, the lengths of the three sides are 30 meters, 40 meters and 50 meters respectively, what is the height of the hypotenuse in meters?
在一个直角三角形中，三条边长分别为30米、40米、50米，求斜边上的高是多少米．
<gadget id="calculator">120 / 50</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>