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Geometry Set 2
Plane Shapes and Properties
Term | Definition |
---|---|
polygon | a plane, closed figure formed by line segments |
closed | A figure that can be traced with the same starting and stopping points, and without crossing or retracing any part of the figure. |
triangle | a three sided polygon |
quadrilateral | a four sided polygon |
square | all sidedthe same length, 4 right angles |
rectangle | opposite sides parallel and same length, four right angles |
trapezoid | only one pair of parallel sides |
parallelogram | two pairs of parallel sides |
rhombus | two pairs of parallel sides and all sides the same length |
pentagon | 5 sided polygon |
hexagon | 6 sided polygon |
heptagon | 7 sided polygon |
octagon | 8 sided polygon |
nonagon | 9 sided polygon |
decagon | 10 sided polygon |