IM Geometry Unit 3 Lesson 1
Diego took a picture of a hippo and then edited it. Which is the distorted image? How can you tell? Is there anything about the pictures you could measure to test whether there’s been a distortion?
A dilation with center O and positive scale factor r takes a point P along the ray OP to another point whose distance is r times farther away from O than P is. If r is less than 1 then the new point is really closer to O, not farther away.
Dilate H using C as the center and a scale factor of 3. H is 40 mm from C.
Dilate K using O as the center and a scale factor of . K is 40 mm from O.
Dilate all the parts of the figure using center P and scale factor
IM G Unit 3 Lesson 1 from IM Geometry by Illustrative Mathematics, https://im.kendallhunt.com/HS/students/2/3/1/index.html. Licensed under the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/.