1. TRANSFORMATIONS,CONGRUENCE, & SIMILARITY
UNIT 1 TEST REVIEW
TRANSFORMATIONS,CONGRUENCE, & SIMILARITY

2. Translation/Rotation/Reflection

3. Dilations Dilate means “to make wider or larger.”
A dilation changes the size, but not the shape.

4. Translation: EXAMPLE

5. Reflection: Example

6. Dilation & scale factor Example
Dilate the figure by a scale factor of 3 A(1,1) B (3,1) C (3,3)

7. Dilations: Scale Factors
Big to small = scale factors less than 1
Small to big = Scale factors larger than 1

8. Dilated images: Example
Triangle ABC is dilated by a scale factor of 6. Its vertices are A(0,2), B(1,-2) C(6,7)
What are the new coordinates?

9. Congruence

10. Similar Figures

11. Proportions:

12. Triangles

13. Finding Angles in Triangles

14. Finding Angles in Triangles

15. Triangle Angle: Problems
If the congruent angles of an isosceles
triangle each measure 41°, what is
the measure of the third angle?

16. Triangle Angle problem

17. Parallel and Perpendicular lines

18. Alternate Interior/Exterior Corresponding Angles

19. Vertical Angles

20. Vertical Angle
If angle F and G are vertical angles and measure of F = 63°, find measure of G.

21. Parallel Lines: Problems

22. Problems

23. Problems

24. Problems

25. Problems
IF THE MEASURE OF ANGLE4