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Quadrilaterals

Chapter 8 Vocabulary

WordDefinition
diagonal a segament that joins two nonconsecutive vertices of a polygon
parallelogram a quadrilateral with both pairs of opposite sides parallel
rhombus a parallelogram with four congruent sides
rectangle a parallelogram with four congruent angles
square a parallelogram with four congruent sides and four congruent angles
trapezoid a quadrilateral with exactly one pair of parallel sides, called bases. the nonparallel sides are legs
base angles either pair of angles whose common side is a base of a trapezoid
base the parallel sides of a trapezoid
legs the nonparallel sides of a trapezoid
isosceles trapezoid a trapezoid with congruent legs
midsegent of a trapezoid a segment that connects the midpoints of the legs of a trapezoid
kite a quadrilateral that has two pairs of consecutive congruent sides, but in which opposite sides are not congruent
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