Test
Similar triangles practice
This 10th-grade classroom material helps students practice identifying similarity criteria (AA, SAS, SSS), understand proportions, and apply logical reasoning through multiple-choice questions, step arrangement tasks, and matching exercises to deepen their understanding of similar triangles.
By Edform · Mathematics · Grade 10 · Published Oct 15, 2026 · New
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Questions
- Which of the following is NOT a valid criterion for proving two triangles are similar?
- Select all sets of triangle pairs that can be proven similar using the AA similarity criterion.
- Arrange the steps in the correct order to prove two triangles are similar by the SAS similarity criterion.
- Match each similarity criterion to its description.
- Fill in the blank with the correct value: If triangle ABC ~ triangle DEF and AB/DE = 2/3, then the ratio of their perimeters is ___.
- Triangle XYZ is similar to triangle PQR. If angle X = 50°, angle Y = 60°, then angle Z is ___.
- Sort the following pairs as 'Similar by SSS' or 'Not Similar by SSS'.
- Mark each statement as true or false.
- Triangle ABC is similar to triangle DEF. If AB = 6, BC = 8, AC = 10, and DE = 9, what is the length of EF?
- What is the minimum number of pairs of congruent angles needed to prove two triangles are similar using the AA criterion?
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