Across
- 3. Triangle with no sides equal.
- 6. Triangle with one right angle.
- 9. Series of points that extend in opposite directions without end.
- 10. We use this formula to find the length of segment when given two coordinate points.
- 11. Coplanar lines that do not intersect.
- 15. Pair of angles that are in the same position when a transversal intersects two lines.
- 17. Point that divides a segment into two congruent segments.
- 18. The point of concurrency of the medians of a triangle.
- 19. If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, the triangles are congruent by ___.
- 20. Two angles that add to 180 degrees.
- 21. Triangle with one obtuse angle.
- 23. Property that states a segment congruent to itself.
- 26. Rays that have a common endpoint but extend in opposite directions.
- 28. An accepted statement of fact.
- 34. If an angle of one triangle is congruent to an angle in a second triangle and the lengths of the sides including these angles are proportional, then the triangles are similar.
- 35. Two lines that meet at right angles.
- 37. If three sides of one triangle are congruent to three sides of another triangle, the triangles are congruent by ____.
- 38. A perpendicular segment in a triangle from the vertex to the opposite side or a line containing the opposite side.
- 42. Triangle with all sides equal.
- 43. Three-sided polygon.
- 44. Angles formed when two lines intersect, that are always congruent.
- 45. Non-coplanar lines that do not intersect.
- 46. Part of a line consisting of one endpoint and all points to one side of the endpoint.
- 49. Figures that are the same shape but not necessarily the same size.
Down
- 1. The third (non-congruent) side of an isosceles triangle.
- 2. Part of a line consisting of two endpoints and all points between.
- 4. Angle that is formed by the two congruent sides of an isosceles triangle.
- 5. Three or more lines that intersect at one point.
- 7. A segment in a triangle from the vertex and the midpoint of the opposite side.
- 8. Segment that connects two midpoints of two sides of a triangle.
- 12. Points in the same plane.
- 13. Two angles that add to 90 degrees.
- 14. Cuts an angle or segment into two congruent parts.
- 16. Two angles that share a common side and vertex.
- 22. If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, the triangles are congruent by ___.
- 24. Smallest unit in Geometry.
- 25. If two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar.
- 27. An angle that measures 180 degrees.
- 29. Triangle with all angles equal.
- 30. Line, segment or ray that intersects two lines.
- 31. Pair of angles on opposite sides and in the interior of two lines cut by a transversal are called _____ interior angles.
- 32. Figures that are the same size and shape.
- 33. Triangle with two sides equal.
- 36. Points on the same line.
- 38. If two angles and the non-included side of one triangle are congruent to two angles and the non-included side of another triangle, the triangles are congruent by ___.
- 39. Formed by two rays with a common endpoint.
- 40. The two equal sides of an isosceles triangle.
- 41. A statement that must be proven correct.
- 47. If the corresponding side lengths of two triangles are proportional, then the triangles are similar.
- 48. If the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, the triangles are congruent by ___.
- 50. Triangle with all acute angles.