In the middle of a cylindrical tank with a bottom diameter of 251 cm is a standing rod that is 13 cm above the water surface. If we bank the rod, its end reaches the water's surface just by the tank wall.

How deep is the tank?

Correct answer:

h =  599.28 cm

Step-by-step explanation:

 x2=(251/2)2+(x13)2 0=(251/2)22x13+132  x=612.279 cm h=x13=599.28 cm

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