lenght times height == If it rests on one of the shortest sides , then the altitude is the length of the longer side. If it rest on one of the longer sides, then the altitude is the length of the shortest side. If it is the special case of a square, then any side is an altitude.
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2(length + height)= perimeter
Base. X. With. X. Height
The formula for the volume of a rectangle is length x width x height. The area i just length x width
The area of a rectangle is its height multiplied by its width
Base x height. This is the same as the formula for a rectangle; however, please note that the height has to be perpendicular to the base.