Unit 5 Vocabulary

1 / 19

# Unit 5 Vocabulary - PowerPoint PPT Presentation

Unit 5 Vocabulary. Pre-image . The original figure before undergoing a transformation. Image . The new, resulting figure after a transformation. Isometry. A transformation in which the preimage and image are congruent.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Unit 5 Vocabulary' - wells

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Pre-image

The original figure before undergoing a transformation.

Image

The new, resulting figure after a transformation

Isometry

A transformation in which the preimage and image are congruent.

Transformations are called RIGID if every image is congruent to its preimage.

Rigid transformations can also be referred to as an ISOMETRY.

Every segment is congruent to its image.

How do you think

this picture was drawn?

MC Esher

* Translations

* image

* preimage

* Reflections

* preimage

* image

* Rotations

* image

* preimage

Isometries not only

preserve lengths, but

they preserve angle measures

parallel lines, and

betweenness of points

EV

Parallelogram MATH is transformed to Parallelogram LOVE by a rotation.What is the image of HT?

M

A

E

V

L

H

T

O

Congruent

Figures are congruent if they have the same shape, size, lines, and angles.

Similar Triangles

Triangles are similar if they have the same shape but have different sizes.

Similar Polygons

Corresponding angles are congruent and corresponding sides are proportional

Trapezoids ABCD and EFGH are similar

ABCD ~ EFGH

A

B

E

F

List all congruent angles

H

G

D

C

Write the statement of proportionality

7

EX 4

5

6

4

6

4

5

7

NOTE: You must check for corresponding angles to be the same and for the sides to be proportional.