Congruence & Similarity Worksheet
Grade 8 Math · printable worksheet (PDF) with answer key · 13 problems · CCSS 8.G.A.4, 8.G.A.5
A printable grade 8 congruence & similarity practice worksheet with 13 problems and a complete, step-by-step answer key — formatted to print cleanly on standard paper. Included in the one-time $20 unlock for the full NudgeLearn library.
Sample problems
Two figures are similar when one is a dilation (with optional rigid motions) of the other: matching angles are equal and matching sides are proportional. Find the scale factor, then set up a proportion to find each missing length. Keep answers exact.
- 1. The two rectangles are similar. What is the scale factor from the smaller rectangle to the larger one?
- 2. The two right triangles are similar, with the larger a dilation of the smaller. Find the lengths and .
- 3. Two similar figures have matching sides of in and in. Write the scale factor from the larger figure to the smaller figure as a fraction in lowest terms.
- 4. Rectangle measures cm by cm. Rectangle is similar to , and the side matching the cm side is cm. Find the length of the side of that matches the cm side.
Plus 9 more problems and a full answer key in the PDF.
Get it with all of Grade 8 Math for a one-time $8, or unlock the entire library (over 400 worksheets + 55 final tests, every grade) for $20. Yours forever.