Chapter 5 Vocab Review

5. a statement or conjecture that has been proven
6. used to find the distance between two points on the coordinate plane
7. two lines in the same plane that never intersect
10. describes the relationship between the lengths of the legs and the hypotenuse for any right triangle
11. the side of a right triangle opposite the right angle
13. a line that intersects two or more lines
15. the reverse of the parts of the Pythagorean Theorem
18. angles that are not adjacent to the exterior angle
19. a type of informal proof that involves writing a paragraph to explain why a conjecture is true
21. angles that are in the same position on the two lines in relation to the transversal

1. angles formed by one side of a triangle and the extension of the adjacent side
2. exterior angles that lie on opposite sides of the transversal
3. a type of formal proof that contains statements and reasons organized into columns
4. uses facts, rules, definitions, or laws to make conjectures from given situations
8. interior angles that lie on opposite sides of the transversal
9. the sides of a right triangle that form the right angle
10. two lines that intersect in a plane and form right angles
12. the process of making a conjecture after observing several examples
14. all angles have the same measure
16. a logical argument where each statement is justified by a reason
17. angles that lie inside a triangle
20. a polygon that is equilateral and equiangular