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What is the name of this "rule?"

A
Exterior Angle Theorem
B
Triangle Sum Theorem
С
Angle Addition Postulate
Transitive Property
E
Segment Addition Postulate

What is the name of this "rule?" A Exterior Angle Theorem B Triangle Sum-example-1
User Katulus
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1 Answer

9 votes
The answer is Angle addition postulate
User Mandaleeka
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