Quite so. The problem with parallelograms is that they’re a con. They tell you that finding the area is simple: it’s base · height. Easy peasy! But what’s the height? Crap. The length of the sides isn ...
Take any quadrilateral such as ABCD above. Construct the midpoints of each side and join them to form another quadrilateral EFGH. Varignon's Theorem asserts that the ...
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