Geometry Vocabulary

3. An angle that measures more than 90 degrees
5. a three-dimensional figure with triangular sides
8. same shape, different sizes
10. a triangle with two equal sides
11. The distance around a circle
12. Angles that are next to each other and share a common vertex and side
15. A triangle that contains three acute angles
17. two equal angles that are formed by intersecting lines
20. A quadrilateral with adjacent sides that are equal
22. a three-dimensional figure with rectangular sides
25. The distance around a space
26. A quadrilateral with two pairs of opposite equal sides and four right angles
29. A shape
31. A triangle with three equal sides
33. Two rays that meet at a common vertex
35. Travels in both directions forever
36. Begins at an endpoint and continues in one direction forever
37. Two lines that cross
38. A rule that states that the sum of the two smallest sides of a triangle must be larger than the third side to form a triangle

1. Two lines that will never intersect
2. An angle that measures less than 90 degrees
4. Two angles that add up to 180 degrees
6. two angles that add up to 90 degrees
7. Triangle A triangle that contains one angle greater than 90 degrees
9. a triangle with no equal sides
13. Has an endpoint at either end
14. Two lines that meet at a right angle
16. a figure that results when a three-dimensional figure is cut by a plane
18. Congruence A rule that states that if two angles of a triangle and the included side are equal, then the two triangles are congruent
19. A quadrilateral with all equal sides and four right angles
21. A quadrilateral with one pair of opposite parallel sides
23. A triangle that contains a ninety degree angle
24. An angle that is exactly 180 degrees
27. A parallelogram with all equal sides
28. An angle that is exactly 90 degrees
30. A quadrilateral with opposite parallel sides
32. A polygon with four sides, angles, and vertices
34. Figures that are the same shape and size