Chapter 4

6. Triangle- no congruent sides
8. Triangle- at least 2 congruent sides
10. is a transformation that moves all points of the original figure the same distance in the same direction
14. is a theorem with a proof that follows as a direct result of another theorem
15. Triangle- a triangle which all of the angles are acute angles
16. Proof- uses statements written in boxes and arrows to show the logical progression of an argument
18. Transformation- is one in which the position of the image may differ from that of the preimage, but the two figures remain congruent
19. Sides- is the side located between two consecutive angles of a polygon

1. Triangle- 1 obtuse angle
2. Interior Angles- the angles of a triangle that are not adjacent to given exterior angle
3. Angles- two angles formed by the base and the congruent sides
4. Triangle- 3 congruent acute angles
5. Angle- 1 right angle
7. Triangle- 3 congruent sides
9. Polygons- all of the parts of one polygon are congruent to the corresponding parts or matching parts of the other polygon
11. transformation over a line called the line of reflection
12. Angle- the angle with sides that are the legs
13. transformation around a fixed point called the center of rotation, through a specific angle, and in a specific direction
17. Line- is an extra line or segment drawn in a figure to help analyze geometric relationships