IM Geometry Unit 3 Lesson 3

Topic:
Geometry

Dilate triangle FGH using center C and a scale factor of 3.

Below is triangle EFG and center C. What are the lengths of each side of the image of triangle EFG if you dilate triangle EFG by a scale factor of 3?

Do the following dilations on triangle EFG below:
  • Dilate triangle EFG by a scale factor of 3 using center C.
  • Dilate triangle EFG by a scale factor of 1/2 using center C.
  • Dilate triangle EFG by a scale factor of 2 using center C.

Below is a dilation of parallelogram ABCD by a scale factor of 1/2 using center E.

Find each of the following ratios: What do you notice?

Below is a dilation of parallelogram ABCD by a scale factor of 1/2 using center E.

Find each of the following ratios: What do you notice?