IN MATH: 1. a quadrilateral having only 1 set of parallel sides. EX. A trapezoid with congruent sides is called an isosceles trapezoid.

IN ENGLISH: 1. as defined above.
APPLICATION: See list 140.
1. Compute the area of a trapezoid having base lengths of 5 ft. and 6 ft., a height of 4 ft., and sides of 4 ft. and 3.16 ft.
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