A trapezoid is a four-sided shape that has only two parallel sides. Most quadrilaterals have two pairs of parallel sides for four sides total, such as squares, rectangles, rhombuses and parallelograms.
Continue ReadingA trapezoid is defined by having only one pair of parallel sides. None of the sides are required to be the same length, and the two non-parallel sides can be at any physically possible angles. The perimeter can be calculated by adding together the length of the sides. The formula for the area of a trapezoid is (a+b)*h/2, where "a" and "b" are the length of the parallel sides, and "h" is the distance between those sides.
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