Ra - 4th Quarter
English
Proving the Sum of Interior Angles
Examine the diagram.
The diagram shows parallel lines cut by two transversal
lines creating a triangle. Which statement can be made
from the diagram?
OmZB + m2 C + 55° = 180°
MZA + 60° + 55° = 180°
m2 C = 55°
Om A = 55°
60
C
65
55

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