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Shapes & Designs
| Term | Definition |
|---|---|
| Triangle | a polygon with 3 sides and 3 angles |
| Right triangle | a three sided polygon with one angle that equals 90 degrees |
| Isosceles Triangle | a three sided polygon with 2 sides that are the same length |
| Equilateral Triangle | a three sided polygon where are sides are the same length |
| Quadrilateral | a four sided polygon |
| Parallelogram | a quadrilateral where opposite sides are parallel and the same length |
| Polygon | any enclosed shape made of only straight sides that do not intersect |
| Degree | a measure of rotation of an angle |
| Right Angle | where 2 lines intersect to form 90 degrees |
| Initial Side | the beginning line when measuring an angle |
| Terminal Side | the ending line when measuring an angle |
| Straight Angle | an angle that measures 180 degrees |
| Acute Angle | an angle that measures between 0 and 90 degrees |
| Obtuse Angle | an angle that measures between 90 and 180 degrees |
| Quadrant | one of the 4 sections on a coordinate grid |
| Complementary Angles | when 2 angles combine to equal exactly 90 degrees |
| Supplementary Angles | when 2 angle combine to equal exactly 180 degrees |