What is a trapezoid? A trapezoid is a quadrilateral that has one set of parallel sides. Often people, young and old, are only exposed to one type of trapezoid (the red trapezoid below) and there are many misconceptions in the later elementary years when children are exposed to the right trapezoid (see the second picture below) and are asked to derive and apply a formula for a trapezoid. I challenge you to expose both diagrams to someone and start the discussion of what a trapezoid is!
The next discussion with be regarding parallelograms. I am on a geometric KICK!
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