# Chapter 2 Lesson 3

## Independent Practice

In question 1 and 2 you would have to measure one side of both triangles/parallelogram and put  the two measures into a fraction ratio and simplify it then repeat this process for the other sides.

In question 3 you multiply 3 and 5 by 1.5 for the scrapbook then multiply the both of the answers by 1.5 again for the cover then determine if they are similar.

In question 4 and 5 determine the transformations(dilation, translation, rotation, and reflection) you have to use in order to map the preimage on to the image.

In question 9 you have tell whether True or False the order in which you perform the transformations does not matter. Then explain your reason.

In question 10 you have to bubble "A", "B", "C", or "D" to determine which series of transformations maps point C onto point R.

Definitions

Transformation- a thorough or dramatic change in form or appearance.

Dilation- The act of expanding or shrinking a figure by a scale factor.

Scale Factor- a number used as a multiplier in scaling.

Translation- the process of moving something from one place to another.

Reflection- The act of reflecting over the X-axis or Y-axis.

Rotation- the action of rotating around an axis or center.

Preimage- The main image before any transformations take place.

Similar Figures- Two geometrical objects are called similar if they both have the same shape.

Congruent Figures- Figures that have the same size and shape.