Across
- 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
Down
- 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