Drawing not to scale.
Civen: 22a 24,m22-110⁰
Prove: M23-70°
Statement
22 24,m42-110
m22-M24
m24-110°
m23 and 24 are a linear pair
m23 and 24 are
supplementary
m23+m24-180°
m23+110-180°
M23-70°
Given
Definition of congruent angles
a
Proof
Definition of a linear pair (shown in
diagram)
Linear Pair Postulate
b.
Substitution Property
c.
