transformation geometry dilations l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Transformation Geometry Dilations PowerPoint Presentation
Download Presentation
Transformation Geometry Dilations

Loading in 2 Seconds...

play fullscreen
1 / 10

Transformation Geometry Dilations - PowerPoint PPT Presentation


  • 899 Views
  • Uploaded on

Transformation Geometry Dilations. What is a Dilation?. Dilation is a transformation that produces a figure similar to the original by proportionally shrinking or stretching the figure. Dilated PowerPoint Slide. Proportionally. Let’s take a look….

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

Transformation Geometry Dilations


An Image/Link below is provided (as is) to download presentation

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
    1. Transformation Geometry Dilations

    2. What is a Dilation? • Dilation is a transformation that produces a figure similar to the original by proportionally shrinking or stretching the figure. Dilated PowerPoint Slide

    3. Proportionally Let’s take a look… And, of course, increasing the circle increases the diameter. • When a figure is dilated, it must be proportionally larger or smaller than the original. So, we always have a circle with a certain diameter. We are just changing the size or scale. Decreasing the size of the circle decreases the diameter. We have a circle with a certain diameter. • Same shape, Different scale.

    4. A HINT: SAME SHAPE, DIFFERENT SIZE C D B Which of these are dilations??

    5. Scale Factor and Center of Dilation When we describe dilations we use the terms scale factor and center of dilation. • Scale factor • Center of Dilation Here we have Igor. He is 3 feet tall and the greatest width across his body is 2 feet. He wishes he were 6 feet tall with a width of 4 feet. His center of dilation would be where the length and greatest width of his body intersect. He wishes he were larger by a scale factor of 2.

    6. Scale Factor • If the scale factor is larger than 1, the figure is enlarged. • If the scale factor is between 1 and 0, the figure is reduced in size. Scale factor > 1 0 < Scale Factor < 1

    7. Are the following enlarged or reduced?? C A Scale factor of 1.5 D Scale factor of 3 B Scale factor of 0.75 Scale factor of 1/5

    8. B’ C’ A’ B A C The Object and the Image • The original figure is called the object and the new figure is called the image. • The object is labeled with letters. • The image may be labeled with the same letters followed by the prime symbol. Image Object

    9. Dilations Used Everyday

    10. Remember • Dilations areenlargementsorreductions. • What are some things that you would not mind dilating to make larger or smaller? Practice Dilation Quiz