Geometry

6. an angle that measures 180 degrees
8. lines that have exactly 1 point in common
10. a segment that passes through the center of a circle and has both endpoints on the circle
13. lines that intersect to form right angles
14. a parallelogram with all sides congruent
18. a figure formed by two rays with a common endpoint called the vertex
19. a pair of opposite congruent angles formed by intersecting lines
20. a part of a line between 2 endpoints
23. polygons with the same shape and the same size
25. a closed plane figure formed by 3 or more line segments that intersect only that their endpoints
27. on an angle or polygon, the point where 2 sides intersect
30. triangle with at least 2 congruent sides
32. angles in the same plane that have a common vertex and a common side
33. the set of points in a plane that re all the same distance from a given point, called the vertex
34. 2 angles whose measure have a sum of 180 degrees
35. a polygon with congruent sides and angles
37. angle whose measure is greater than 90 degrees but less than 180 degrees
38. a triangle containing a right angle

1. triangle containing 1 obtuse angle
2. a flat surface that extends forever
3. lines in a plane that do not intersect
4. two angles whose measures add up to 90 degrees
5. sides that have the same length
7. a straight path that extends without end in opposite directions
9. a segment that has both endpoints on the circle
11. angles with equal measures
12. a quadrilateral with 2 pairs of parallel lines
15. a triangle with no congruent sides
16. a rectangle with 4 congruent sides
17. quadrilateral with exactly one pair of parallel sides
21. a triangle with all angles measuring less than 90 degrees
22. an exact location
24. lines that lie in different planes that are neither parallel nor intersecting
26. an angle that measures less than 90 degrees
28. a parallelogram with 4 right angles
29. triangle with 3 congruent sides
31. a part of a line that starts at one endpoint and extends forever
36. an angle that measure 90 degrees