Unit 1 Transformations Congruence and Similarity Congruent vs
- Slides: 19
Unit 1 Transformations, Congruence, and Similarity
Congruent vs Similar Figures
Congruent Figures Congruent figures have the same shape and same size. The sides and angles have the same measure.
Example Are these figures congruent? Why or why not? 1. 2. 3.
Similar Figures Similar figures have the same shape but different size
You Try On a sheet of paper, draw two examples of similar figures. Be ready to explain why they are similar and not congruent.
Introduction to Transformations A transformation is the movement of a figure/object in the coordinate plane. 4 types: Translation, Reflection, Rotation, and Dilation
Pre-Image/Original Image vs. New Image The original shape of the object is called the pre-image (No primes!) The new shape has primes (Example A’)
Introduction to Transformations https: //www. brainpop. com/math/geometryandmeasurem ent/transformation/ Pay attention to the characteristics of the three types of transformations discussed in the video.
Rotation KEY WORD: TURN
Translation KEY WORD: SLIDE
Reflection KEY WORD: FLIP
After a translation, reflection, or rotation is performed, figures are still congruent (same shape and size). After a dilation occurs, figures are similar NOT congruent.
PRACTICE TIME!!! DRAW A COORDINATE PLANE. BE SURE TO LABEL YOUR X-AXIS AND Y-AXIS. ALSO LABEL YOUR QUADRANTS.
Identifying Transformations You Try Determine which type of transformation (rotation, translation, or reflection) is being performed in each problem. 1. 2.
3. 4.
More Practice http: //www. harcourtschool. com/activity/icy_slides_fli ps_turns/
- Lesson 3: proving triangles similar
- Geometry topic 1 review
- Week 1: congruence transformations
- Transformations and congruence
- 7-2 similarity and transformations
- Classify each polygon
- Identify the type of congruence transformation?
- Verifying congruence using translations
- A dilation is an enlargement if the scale factor
- Quiz 6-2 proving triangles are similar
- Vertical angles are congruent
- Included angle
- Unit 4 homework 4 congruent triangles
- Unit 3 lesson 3 proving triangles similar
- Unit 6 test similar triangles
- 4-1 congruent figures
- Quiz 4-2 congruent triangles sss and sas
- Unit 3 lesson 4 proving angles congruent
- Vertical angles are congruent
- Unit 6 review questions