4.7 Congruence Transformations.notebook · 2013. 10. 31. · 4.7 Congruence...
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4.7 Congruence Transformations.notebook 1 October 31, 2013 Find the distance between (9, 2) and (5, 4) "Do Now"
Transcript of 4.7 Congruence Transformations.notebook · 2013. 10. 31. · 4.7 Congruence...
4.7 Congruence Transformations.notebook
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Find the distance between (9, 2) and (5, 4)
"Do Now"
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Homework Answers
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Quizzie Poo
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Watch Ms. Pac Man go!
http://robertkaplinsky.com/work/mspacman/#prettyPhoto
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Unit 5: Congruent Triangles4.7 Congruence Transformations
Date
Transformation An operation that maps a figure (the preimage) onto a new figure (the image)
PreImage Image
It can change the position, size, and shape of a figure
Transformation Statement is very specific
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CongruenceTransformation
(aka: Rigid Motionor Isometry)
Preimage and image are in different positions, but still congruent
3 Types: 1. Translation2. Reflection3. Rotation
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1. Translation Slide of same distance in same direction
2. Rotation Turn around a fixed point (called "center of rotation"); each point of image and its matching point in the image are the same distance from the center of rotation
3. Reflection Flip across a line of reflection; each point of image and its matching point in the image are the same distance from the line of reflection
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Which type of congruence transformation?
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Which type of congruence transformation?
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Which type of congruence transformation?
