http://www.ck12.org Chapter 4. Triangles and Congruence
1. HL
2. ASA
3. AAS
4. SSS
5. SAS
Using the pictures below, determine which theorem, postulate or definition that supports each statement below.
6.m^61 +m^62 = 180 ◦7.^65 ∼=^66
8.m^61 =m^64 +m^63
9.m^68 = 60 ◦
10.m^65 +m^66 +m^67 = 180 ◦
11.^68 ∼=^69 ∼=^610
12. Ifm^67 = 90 ◦, thenm^65 =m^66 = 45 ◦
Texas Instruments Resources
In the CK-12 Texas Instruments Geometry FlexBook, there are graphing calculator activities designed to
supplement the objectives for some of the lessons in this chapter. See