I have a wall that forms a circle around a pond. It is 3 bricks high and 10 ft in diameter. It is made of bricks that weight 20 pounds.
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If I then increase the circumference, so the diameter is now 40 ft across, but other parameters are the same, such as the height, type of building materials, etc., will that now be exerting a much higher amount of pressure against the walls? If the circumference is too much, would that wall eventually fail? If so, how do I calculate whether the brick wall comprising 20 pound bricks is strong enough to hold this new amount of water?