Description
These Similar Triangles Tests and Quizzes provide ready-to-use assessments for dilations, proportional relationships, and AA, SSS, and SAS Similarity. With four quizzes and two test options, you can assess individual concepts throughout your similarity unit and choose the final assessment that best fits your students.
Students will work with diagrams, algebra, proportions, and written reasoning—not simply identify similarity theorems.
Skills assessed include:
Dilations on the coordinate plane
Scale factors and proportional relationships
AA, SSS, and SAS Similarity
Writing similarity statements in the correct order
Solving for missing side lengths
Using similarity and proportionality theorems
Applying algebra within similar figures
Justifying whether triangles are similar
Explaining proportional reasoning
What’s included:
1 Dilations Quiz
3 Similar Triangles Quizzes
Test A: a comprehensive 16-question assessment with diagrams, algebra, and multi-step proportional reasoning
Test B: a shorter 10-question assessment with additional scaffolding and guided setup
Complete answer keys
Print-ready PDF versions
Editable PowerPoint versions
Teacher Use Guide
The two test options assess the essential similarity skills at different levels of support. Use Test A for a more comprehensive assessment or Test B when students benefit from a shorter format and more guided setup. The quizzes can be used as checkpoints throughout the unit, small-group assessments, review practice, or alternate quiz versions.
All assessments are included as ready-to-print PDFs and editable PowerPoint files. In the PowerPoint versions, teachers may adjust wording, values, and layouts or replace diagrams as needed before saving or printing classroom copies.
Need instruction and practice before assessing? Pair this resource with my Similar Triangles Lesson, or find it within my complete Geometry Curriculum. It also coordinates with my growing Geometry Tests and Quizzes Bundle.




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