Geometry Vocabulary

2. an ANGLE that looks like a square corner and measures 90 degrees
3. a two dimensional closed figure made with 3 or more STRAIGHT line segments that do not cross over each other
5. any characteristic of an object or shape, such as number of sides or angles, lengths of sides, or angle measures
11. an angle that measures more than 90 degrees but LESS THAN 180 degrees
13. a collection of objects grouped together based on attributes they have in common
14. a ranking of categories based on attributes
16. a quadrilateral with opposite sides parallel and equal in length
18. two lines that meet to form a right angle or a 90 degree angle
19. a triangle that has no sides the same length

1. a triangle that has one right angle
3. a polygon with exactly 5 sides and 5 angles
4. a triangle that has all three sides the same length
6. (inclusive) a quadrilateral with at least one pair of parallel sides
7. a polygon with exactly 4 sides and 4 angles
8. a category WITH-IN a larger category. It shares ALL the same attributes as the larger category
9. a polygon with exactly 6 sides and 6 angles
10. an angle that measures more than 0 degrees but less than 90 degrees
12. lines that are always the same distance apart and never cross
15. a triangle that has AT LEAST 2 sides the same length
17. a geometric shape formed by two rays, lines, or line segments that meet a common point