Similarity & Scale Factors Worksheets
Free printable similarity & scale factors worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from find scale factor from two corresponding sides at the easy level through to linear scale factor from area ratio (sqrt) at the advanced level.
CCSS.7.GCCSS.8.G
Difficulty Levels
Beginner
- Concepts
- Find scale factor from two corresponding sides
- Number Range
- sides 2–30, integer scale factors 2–5
- Steps
- 1 step
- Example
- Similar squares with sides 4 and 12. Scale factor?
Easy
- Concepts
- Scale all sides of a triangle by a given factor
- Number Range
- sides 3–13, scale 2–4
- Steps
- 1 step
- Example
- Triangle 3,4,5 scaled by 3. Find sides
Medium
- Concepts
- Find missing side of similar rectangles
- Number Range
- sides 3–8, scale 2–4
- Steps
- 2 steps
- Example
- Rectangles 4×7 and 12×?. Find missing side
Hard
- Concepts
- Linear scale factor from area ratio (sqrt)
- Number Range
- areas 4–900, linear scale 2–5
- Steps
- 2 steps
- Example
- Areas 9 and 81. Linear scale factor?
Grade Availability
Similarity & Scale Factors worksheets are available for Grades 7–8. Problems are automatically adjusted to match grade-level expectations in number range, complexity, and notation.
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