1. Name ______________________________________ Date _________________
Mrs. Labuski & Mrs. Rooney Period ___________ Les 7-3 Angle Relationships
130°
50° 50°
130°
VOCABULARY DEFINITION EXAMPLE
When two angles have the ∠ABC and ∠DBF
CONGRUENT
same measure. ∠CBF and ∠ABD
Are formed opposite each
other when two lines intersect. ∠ABC and ∠DBF
VERTICAL ANGLES
They have the same measure ∠CBF and ∠ABD
and they share a vertex.
∠ABC and ∠CBF
Are side by side and have a ∠CBF and ∠FBD
∠FBD and ∠DBA
ADJACENT ANGLES common vertex and ray. They
∠DBA and ∠ABC
may or may not be congruent.
A•
COMPLEMENTARY Two angles whose measure •D
60°
ANGLES 30°
have a sum of 90° B• •C
∠ABD and ∠DBC
∠ABC and ∠CBF
SUPPLEMENTARY Two angles whose measure ∠CBF and ∠FBD
ANGLES have a sum of 180° ∠FBD and ∠DBA
∠DBA and ∠ABC

3. Name ______________________________________ Date _________________
Mrs. Labuski & Mrs. Rooney Period ___________ Les 7-3 Angle Relationships
130°
50° 50°
130°
VOCABULARY DEFINITION EXAMPLE
CONGRUENT
VERTICAL ANGLES
ADJACENT ANGLES
A•
COMPLEMENTARY •D
60°
ANGLES 30°
B• •C
SUPPLEMENTARY
ANGLES