A D/L ratio is calculated by dividing a boat's displacement in long tons (2,240 pounds) by one one-hundredth of the waterline length (in feet) cubed.
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The ratio of sail to boat length can vary depending on the type of boat and its intended use. In general, sailboats typically have a sail area that is around 1.5 to 2.5 times the boat's length. However, this ratio can be higher for racing sailboats and lower for smaller recreational sailboats.
Just divide a boat's sail area in square feet by its wetted surface area in square feet (SA/WS = SA ÷ WS),
it is not a acute it is aobtuse angle.
Area ratio = (edge-length ratio)2 Volume ratio = (edge-length ratio)3 Volume ratio = (area ratio)3/2
To find the ratio of the length of a shape to its perimeter, you would divide the length by the perimeter. For example, if the length of a rectangle is 4 units and its perimeter is 12 units, the ratio would be 4/12 or 1/3. This ratio represents the proportion of the length to the total distance around the shape.
The length and breadth of our National Flag is in the ratio of 3 : 2.