Geometry 4-3 Triangle Congruence by ASA and AAS
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by Matthew Richardson
| 18 Questions
Note from the author:
A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.
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1
10 pts
Solve It! Oh no! The school's photocopier is not working correctly. The copies all have some ink missing. The two photocopies shown are of the same geometry worksheet. Which triangles are congruent?
△ABC and △DEF
△TUV and △DEF
△LMN and △ABC
△TUV and △LMN
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2
10 pts
Problem 1 Got It?
A
B
C
D
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3
20 pts
Problem 2 Got It? Complete the proof on the canvas.
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4
20 pts
Problem 3 Got It? Complete the proof on the canvas.
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10 pts
Problem 4 Got It? Are △PAR and △SIR congruent?
Yes
No
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10 pts
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B
C
D
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8
10 pts
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B
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9
10 pts
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10 pts
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D
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10 pts
Error Analysis: Your friend asks you for help on a geometry exercise. Shown is your friend's paper. What error did your friend make? Explain.
13
10 pts
Reasoning: Suppose ∠E ≅ ∠I and segment FEsegment GI.
What else must you know in order to prove △FDE ≅ △GHI by ASA? by AAS?
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10 pts
Review Lesson 4-2: Would you use SSS or SAS to prove the triangles congruent?
SSS
SAS
15
10 pts
Review Lesson 4-2: Would you use SSS or SAS to prove the triangles congruent?
SSS
SAS
16
10 pts
Vocabulary Builder: Define corresponding in your own words.
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10 pts
Use Your Vocabulary: Match corresponding angles and segments.
  • segment BC
  • ∠A
  • segment AB
  • ∠C
  • segment AC
  • ∠B
  • ∠X
  • ∠Y
  • ∠Z
  • segment XY
  • segment YZ
  • segment XZ
18
10 pts
Reflection: Math Success
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