Geometry Vocabulary

2. a triangle containing one obtuse angle
4. a parallelogram with all sides congruent
6. a straight path that extends without end in opposite directions
8. an exact location in space
11. an angle that measures 180°
15. a triangle with three congruent sides
17. a part of a line that starts at one endpoint and extends forever
19. a parallelogram with four right angles
22. two angles whose measures add to 90°
27. lines in a plane that do not intersect
28. on an angle or polygon, the point where two sides intersect
29. a closed figure formed by three or more line segments that intersect only at their endpoints
30. a triangle containing a right angle
31. angles in the same plane that have a common vertex and a common side
32. two angles whose measures have a sum of 180°

1. an angle whose measure is greater than 90° but less than 180°
3. a part of a line between two endpoints
5. a triangle with all angles measuring less than 90°
7. lines that intersect to form right angles
9. an angle that measures 90°
10. a triangle with at least two congruent sides
12. an angle that measures less than 90°
13. lines that lie in different planes that are neither parallel nor intersecting
14. a four-sided polygon
16. a polygon with congruent sides and angles
18. figure formed by two rays with a common endpoint called the vertex
20. a triangle with no congruent sides
21. a quadrilateral with two pairs of parallel sides
23. a flat surface that extends forever
24. a rectangle with four congruent sides
25. having the same size and shape
26. a pair of opposite congruent angles formed by intersecting lines