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Quadrilaterals
Properties
Term | Definition |
---|---|
Trapezoid | -Only ONE pair of opposite sides are parallel (called bases) -Consecutive angles are supplementary MIDSEGMENT OF A TRAPEZOID: a midsegment of a trapezoid connects the midpoints of the legs. This segment is equal to the average of the two bases. |
Parallelogram | -Opposite sides parallel -Opposite sides congruent -Opposite angles congruent -Consecutive angles supplementary -Diagonals bisect each other |
Isosceles Trapezoid | -Non-parallel sides (legs) are congruent - Diagonals are congruent -Base angles are congruent -Opposite angles are supplementary |
Rhombus | -Four congruent sides -Diagonals are perpendicular -Diagonals bisect opposite angles |
Rectangle | -Four right angles -Diagonals are congruent |
Square | Squares have ALL the properties of parallelograms, rectangles, and rhombus! |