Question

Given a preimage and an image, how can you find the scale factor and center of dila How does the scale factor create proportional sides? How do dilations affect the perimeter and area of similar triangles? → Explain the three additional ways to prove two triangles are similar: What is AA-, SAS-, and SSS-? What do dilations preserve? #

Answer 1

Question:

Given a preimage and an image, how can you find the scale factor and center of dilatation

Solution:

To find the scale factor for a dilation, find the center point of dilation and measure the distance from this center point to a point on the preimage.

Also, find the distance from the center point to a point on the image. The ratio of these distances gives us the scale factor.