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paralellograms
geometry
Term | Definition |
---|---|
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 |