Geometry Ch. 1 Terms Exam
| __ | 1. | Angle | | A. | Points on the same line | | __ | 2. | Collinear | | B. | <----> | | __ | 3. | Endpoint | | C. | Two dimensional flat surface | | __ | 4. | Line | | D. | ----- | | __ | 5. | Line Segment | | E. | Has a starting point but never ends | | __ | 6. | Plane | | F. | The start or stopping point of a line | | __ | 7. | Point | | G. | Point where the two rays join to make an angle | | __ | 8. | Postulate | | H. | A true statement that we do not have to prove | | __ | 9. | Ray | | I. | Has no size. A dot | | __ | 10. | Vertex | | J. | Figure made of two rays with the same vertex |
| __ | 11. | Acute angle | | A. | Angle whose measure is less than 90 degrees | | __ | 12. | Adjacent angles | | B. | Angle whose measure is greater than 90, less than 180 | | __ | 13. | Complementary angles | | C. | Unit of measure used for angles | | __ | 14. | Degree | | D. | Lines that form a right angle | | __ | 15. | Obtuse angle | | E. | Angles with same vertex and one common side | | __ | 16. | Perpendicular lines | | F. | Angle whose measure if 90 degrees | | __ | 17. | Right angle | | G. | Two angles whose measure adds to be 90 degrees | | __ | 18. | Straight angle | | H. | Angle whose measure is 180 degrees | | __ | 19. | Supplementary angles | | I. | Two angles whose measure adds to be 180 degrees | | __ | 20. | Vertical angles | | J. | Angles with same vertex and sides formed by the same lines |
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