2. Triangle Congruence by ASA and AAS
Students will recognize the significance of elements in a triangle, such as the congruence of sides and angles, and will determine the congruence (or lack thereof) between two triangles using ASA and AAS.

15. 4-3 Quiz
The following questions are to help you see how well you understood today’s lesson.
Please follow up with me if you don’t understand what you miss.
Record the number you got right on your portfolio sheet!

16. 1. In each pair of triangles, parts are congruent as marked
1. In each pair of triangles, parts are congruent as marked. Which pair of triangles is congruent by ASA?

17. 2. What is the missing reason in the two-column proof?
ASA Postulate
SSS Postulate
SAS Postulate
AAS Theorem

18. Yes, by SAS Yes, by AAA Yes, by ASA No
3. From the information in the diagram, can you prove ∆FDG  ∆FDE ? Explain.
Yes, by SAS
Yes, by AAA
Yes, by ASA No

19. Neither ASA AAS Either ASA or AAS
4. Can you use the ASA Postulate, the AAS Theorem, or both to prove the triangles congruent?
Neither
ASA
AAS
Either ASA or AAS

20. 𝐵𝐶 ≅ 𝐸𝐹 ∠𝐵≅∠𝐸 𝐴𝐶 ≅ 𝐷𝐹 𝐴𝐵 ≅ 𝐷𝐸
5. If A  D and C  F , which additional statement does NOT allow you to conclude that ∆ABC  ∆DEF?
𝐵𝐶 ≅ 𝐸𝐹
∠𝐵≅∠𝐸
𝐴𝐶 ≅ 𝐷𝐹
𝐴𝐵 ≅ 𝐷𝐸

21. Then rate your assignment
4-3 p
#8-28 even
Then rate your assignment
as to how well you understood the lesson and write why you rated yourself that way.