Download presentation

Presentation is loading. Please wait.

Published byAnthony Morales Modified over 3 years ago

1
**Advanced Geometry Rigid Transformations Lesson 2**

Reflections

2
**Reflection Line of Reflection flip**

3
Pre-image Image N E E N P P T A A T

4
Example: Draw the reflected image of quadrilateral WXYZ in line p.

5
Example: Name the image of each figure under a reflection in line F D trapezoid FHGA

6
Example: Quadrilateral ABCD has vertices A(1, 1), B(3, 2), C(4, -1), and D(2, -3). Graph ABCD and its image under reflection in the x-axis.

7
Example: Triangle RST has vertices R( -1, 3), S(-5, -2), and T(2, 4). Graph RST and its image under reflection in the y-axis.

8
**origin, reflect over both the x-axis AND**

Example: Quadrilateral RUDV has vertices R(-2, 2), U(3, 1), D(4, -1), and V(-2, -2) and is reflected in the origin. Graph RUDV and its image. To reflect in the origin, reflect over both the x-axis AND y-axis.

9
Example: Triangle XYZ has vertices X(4, -2), Y(2, -3), and Z(3, -5). Graph XYZ and it image under reflection in the line y = x.

10
Example: Rectangle JKLM has vertices J(0, 2), K(0, -2), L(3, 2), and M(3, -2). Graph JKLM and its image under reflection in the line y = -x.

11
**If a figure can be folded so that the two halves **

match exactly, the fold is called a line of symmetry. For some figures, a common point of symmetry, called a point of reflection, exists for all points on a figure

12
**Determine how many lines of symmetry the figure **

Example: Determine how many lines of symmetry the figure has and draw them. Then determine whether the figure has point symmetry. A point of symmetry is the midpoint of all line segments joining opposite points of the figure.

Similar presentations

OK

Holt Geometry 12-1 Reflections 12-1 Reflections Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

Holt Geometry 12-1 Reflections 12-1 Reflections Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on training and development in banks Ppt on sets for class 11 cbse Ppt on thermal power plant in india Ppt on any topic in hindi Ppt on blood stain pattern analysis problems Ppt on case study Ppt on limits and derivatives examples Ppt on game theory wikipedia Ppt on crime file management system in java Ppt on congruence of triangles class 8