M316L Chapter 9 Section 9'1: Congruence Transformations

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M316L Chapter 9Section 9.1 Congruence
Transformations

• Instructor Ricardo Teixeira
• September 24th, 2007

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Overview of the course

• What have we studied in chapter 8?
• What will we study in chapter 9?
• Next chapters 10 and 7.
• Project due Oct 3rd, orientation.
• First exam is Oct 15th.
• Dr. Rhodes will show Flatland on Sep 27th
  (Thursday) at 1230pm and 2pm.

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Chapter 9 Transforming Shapes

• Congruence of 2D figures
• What do you see in this picture?

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Examples of transformations

• Explain the transformations, and name them
• What is changed and what is unchanged in each
  transformation?

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Translations

• O que significa esse termo?
• In mathematics, how we define it?
• To translate aline, polygon?
• Parallel, length.

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Reflections

• What does reflect a figure means?
• Line of reflection, what is, how we find it?
• Paper folding and reflection.
• Describe what you see.

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Rotations

• Describe what you think of a rotation
• Center of rotation, how many degrees
• Similarities with translations and reflections
• Can we apply rotation to 3d figures?NOW
  NOSWIMSON MON

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Combination of them

• Describe what you see