STANDARDS:G. CO. 12 Â G. CO. 10 Â G. CO. 7 Â G. SRT. 5 Â G. CO. 6 Â G. GPE. 4
25
50
60
105
Obtuse
Right
Acute
Equilateral
Angle S is congruent to Angle A
Segment SN is congruent to Segment TN
Angle T is congruent to Angle U
Segment SU is congruent to Segment TN
Triangle CDE
Triangle DEC
Triangle ECD
Triangle EDC
27
64
38
40
SSS
SAS
ASA
AAS
SSS
SAS
ASA
AAS
SAS, CPCTC, and then if alternate interior angles are congruent, lines are parallel
ASA, CPCTC, and then if corresponding angles are congruent, lines are parallel
SSS, CPCTC, and then if alternate interior angles are congruent, lines are parallel
HL, CPCTC, and then if corresponding angles are congruent, lines are parallel
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