CHAPTER 2 LESSON 3
BY: ALEXIS HEATH
SIMILARITIES ND TRANSFORMATIONS
~HOW DO I FIGURE OUT IF TWO FIGURES ARE SIMILAR?~
~ If two figures are similar this means the figure was obtained(OR CREATED) from another figure.
There are questions you want to ask yourself when identifying the similarity between two figures. You want to ask your self... Do the two figures look the same? what transformations did the use on the image? Did they use dilation, translations,reflections or rotations? And also to figure out if the two figures are similar you can find the scale factor. To find the scale factor yo figure out what side you will use first. So lets say you use side AB and side DE. Then u count the units between those two vertices . You would do that for both side AB and DE. You would also do this for another side. Now if the second time is not equal with the first then the two figures are not similar. And that is how you find similar figures using scale factor.
- Dilation-A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation stretches or shrinks the original figure.
- translations-A translation (notation ) is a transformation of the plane that slides every point of a figure the same distance in the same direction.
- reflections- A movement over the x or y axis. the figure is still the same shape.