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CCGPS Geometry
Unit 5 – Congruence & Triangles
5.2 – Notes
Name: _______________________________________ Date: ________________________________
Parallel Lines, Transversals & Base Angles
Alternate Interior Angles
 Opposite sides of the transversal & inside the parallels

Angles are __________________________________________

EQUATION: __________________________________________
Consecutive Interior Angles
 Opposite sides of the transversal & inside the parallels

Angles are __________________________________________

EQUATION: __________________________________________
Alternate Exterior Angles
 Opposite sides of the transversal & outside the parallels

Angles are __________________________________________

EQUATION: __________________________________________
Corresponding Angles
 Same location but at different intersections (only travel on the transversal)

Angles are __________________________________________

EQUATION: __________________________________________
Same Path…
 Angles are ______________________
NOT the Same Path…
 Angles are ______________________
Isosceles Triangles: Base Angles

If 2 angles in a triangle are
congruent, then the sides
opposite them are congruent.

If 2 sides in a triangle are
congruent, then the angles
opposite them are congruent.
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