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# paralellograms

### geometry

TermDefinition
quadrilateral a convex, 4 sided, closed polygon.
consecutive/adjacent sides sides in a polygon that share a vertex
parallelogram opposite sides are parallel and congruent; opposite angles are congruent
rectangle opposite sides are parallel and congruent; all four angles are congruent right angles
square opposite sides are parallel; all sides are congruent; all angles are congruent right angles
rhombus opposite angles are congruent; diagonals bisect at right angles; opposite sides are parallel; all sides are congruent
trapezoid bottom angles are congruent; top angles are congruent; top and bottom sides are parallel; legs are congruent
kite consecutive sides are congruent; diagonals bisect at right angles; no parallel sides
area of a parallelogram base times height or b*h
area of a rectangle length times width or l*w
area of a square side times side or s^2
area of a rhombus base times height or b*h
area of a trapezoid 1/2 h(B1+B2)
area of a kite (D1*D2)/2
Created by: camilione