Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

4.8 notes


Published on

Published in: Education, Technology, Business
  • Be the first to comment

  • Be the first to like this

4.8 notes

  1. 1. Bellwork Find the value of x . 3. If the measure of vertex angle of an isosceles triangle is 112° , what are the measures of the base angles? x = 8 x = 3 34
  2. 2. 4.8 Congruence Transformations Transformation: operation that moves or changes a figure Image: the new figure moves figure the same distance in same direction creates a mirror image of original figure turns a figure around the center of rotation (fixed point) Reflection: Reflection: Tran sl ation: Tran sl ation: slides Rotation: Rotation: reflects rotates
  3. 3. Coordinate Notation for Translations Original Image (x,y) (x+a, y+b) Translations
  4. 4. Coordinate Notation of Reflections Reflections Original Image (x, y) (x, -y) Original Image (x, y) (-x, y) Around the x-axis Around the y-axis
  5. 5. Coordinate Notation for a Rotation Rotation Clockwise Counterclockwise Angle of Rotation : rays drawn from center of rotation to figures 60 90
  6. 7. HW pg.276 4-22 evens, 26-28