# Line Relationships/Parallel Line Relationships/Proving Lines are Parallel

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 Author: LaurenCamp29 ID: 177315 Filename: Line Relationships/Parallel Line Relationships/Proving Lines are Parallel Updated: 2012-10-25 18:51:15 Tags: Math geometry lines parallel Folders: Description: fkdsalfjl Show Answers:

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1. Coplanar lines that do not intersect
Parallel lines
2. A line that intersects two or more coplanar lines at different points
Traversal
3. 4 Different types of angles formed by transversals:
• Corresponding
• Alternate interior
• Alternate Exterior
• Consecutive Interior

4. 2 and 7 are examples of what?
Alternate Interior Angles

5. 2 and 3 are examples of what?
Consecutive Interior Angles

6. 5 and 7 are examples of what?
Corresponding Angles

7. 2 and 4 are examples of what?
Corresponding angles

8. 5 and 8 are examples of what?
Alternate Exterior Angles
9. What do you need to do when you need to find the value of x that makes two lines parallel and the angles are corresponding?
You set them equal to each other
10. When you  need to explain why to lines are parallel does a Corresponding angle have a theorm or a postulate?
Postulate
11. When you  need to explain why to lines are parallel does a Alternate Exterior Angle angle have a theorm or a postulate?
Theorm
12. When you  need to explain why to lines are parallel does a Alternate Interior angle have a theorm or a postulate?
Theorm
13. When you  need to explain why to lines are parallel does a Consecutive Interior angle have a theorm or a postulate?
Theorm
14. When trying to explain why something is parallel how would you word it if the angles were:
Alternate Exterior Angles
They are parallel because of the Alternate Exterior Angle Theorm Converse
15. When trying to explain why something is parallel how would you word it if the angles were:
Corresponding Angles
They are parallel because of the Corresponding Angle Postulate Converse
16. Angles that lie outside of the two lines are on opposite sides of the transversal
Alternate Exterior Angles
17. Angles that lie between the two lines and are on opposite sides of the transversal
Alternate Interior Angles
18. Angles that are between the two lines and are on the same side of the transversal
Consecutive Interior Angles
19. If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent
Corresponding Angle Postulate
20. If two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent
Alternate Interior Angle Theorem
21. If two parallel lines are cut by a transversal, then the pairs of alternate exterior angles are congruent
Alternate Exterior Angle Theorem
22. If two parallel lines are cut by a transversal, then the pairs of consecutive interior angles are supplementary
Consecutive Interior Angle Theorem
23. What is true about Vertical Angles and Corresponding angles?
their values are always the same.
24. A statement made in the if-then form
Conditional Statement
25. What is a converse?
When you switch the hypothesis and the conclusion
26. When do you need to give credit to why the angles are parallel to Angle Addition Postlate?
When you add in an angle

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