Triangle Postulates Practice
9th - 12th Grade
•28 Qs
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Triangle Postulates Practice
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
+3
Standards-aligned
Christian Leber
Used 252+ times
FREE Resource
About this resource
This quiz focuses on triangle congruence postulates and theorems, representing a core topic in high school geometry appropriate for grades 9-12. The questions systematically assess students' ability to identify and apply the five valid triangle congruence methods: SSS (Side-Side-Side), SAS (Side-Angle-Side), ASA (Angle-Side-Angle), AAS (Angle-Angle-Side), and HL (Hypotenuse-Leg for right triangles). Students must demonstrate understanding of CPCTC (Corresponding Parts of Congruent Triangles are Congruent), recognize invalid methods like SSA and AAA, write proper congruence statements with correct vertex correspondence, and apply fundamental triangle properties such as the angle sum theorem. The quiz requires students to analyze geometric diagrams, distinguish between included and non-included sides and angles, and connect rigid motions to congruence postulates, demanding both conceptual understanding and visual-spatial reasoning skills. Created by Christian Leber, a Mathematics teacher in the US who teaches grades 9-12. This comprehensive assessment serves multiple instructional purposes throughout the triangle congruence unit, functioning effectively as a formative assessment tool to gauge student understanding before moving to more complex geometric proofs. Teachers can deploy this quiz as a warm-up activity to activate prior knowledge, assign it as homework for independent practice, or use it as a review session before unit exams. The varied question formats and systematic coverage of all major postulates make it particularly valuable for identifying specific misconceptions and reinforcing the critical distinction between valid and invalid congruence methods. This quiz aligns with Common Core State Standards G-CO.7 and G-CO.8, which require students to use the definition of congruence in terms of rigid motions and use triangle congruence criteria to solve problems and prove relationships in geometric figures.
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28 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Congruent by
Tags
CCSS.HSG.SRT.B.5
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Name the postulate, if possible, that makes the triangles congruent.
Tags
CCSS.HSG.SRT.B.5
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Name the postulate, if possible, that makes the triangles congruent.
Tags
CCSS.HSG.SRT.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How are these two triangles congruent?
Tags
CCSS.HSG.SRT.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How are these two triangles congruent?
Tags
CCSS.HSG.SRT.B.5
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Name the postulate, if possible, that makes the triangles congruent.
Tags
CCSS.HSG.SRT.B.5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the correct congruence statement for these congruent triangles?
Tags
CCSS.HSG.CO.B.7
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