Lessons for 8.G.A.4
Scale factorThe single number every length is multiplied by when one figure is enlarged or shrunk into a similar one.Lesson
Similar figuresMatching angles equal, matching sides in one ratio.Lesson
Similarity transformationsA dilation followed by rigid motions, which is what it means for two figures to be similar.Lesson
Printable Worksheets
Dilations worksheet (PDF)Printable worksheet with answer keyPreview
Scale factor worksheet (PDF)Printable worksheet with answer keyPreview
Similar figures worksheet (PDF)Printable worksheet with answer keyPreview
Similarity transformations worksheet (PDF)Printable worksheet with answer keyPreview