1. The problem statement, all variables and given/known data The following figures show the shape and dimensions of small dmas. Assuming the water level is at the top of the dam, find the total force on that face of the dam. There's a figure of a hemisphere whose diameter is 40 meters 2. Relevant equations 3. The attempt at a solution So it's radius is 20 meters. I'm struggling with this problem with trying to determine the function for the radius in terms of y so that way I can find the total force. Sense this is a hemisphere shape I can't use similar triangles but is the ratio of height, y, to length of the diameter, still 1 to 2? I just wanted to make sure I could before I started solving this problem. I know what to do if I can make this assumption I just wanted to make sure it was a valid assumption.