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Textbook Expert
Textbook ExpertVerified Tutor
5 Nov 2021

Given information

The shape of the water tank is given as follows:

Step-by-step explanation

Step 1.

At a depth h  from the top of the tank, its height with respect to the bottom is 8-h 

The differential radius of the tank at any level is proportional to the height at that level. 

So, find the radius r at any depth h, by equating the ratio of widths and heights. 

 

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