Given: ∆ABC

Prove: All three angles of ∆ABC add up to 180°.

The flow chart with missing reason proves the measures of the interior angles of ∆ABC total 180°.

Question

Given: ∆ABC

Prove: All three angles of ∆ABC add up to 180°.

The flow chart with missing reason proves the measures of the interior angles of ∆ABC total 180°.

anonymous · Answer

Which reason can be used to fill in the numbered blank space? 

 Definition of Supplementary Angles 

 Substitution 

 Definition of Complementary Angles 

 Angle Addition Postulate

anonymous · Answer

Which reason can be used to fill in the numbered blank space? 

 Definition of Supplementary Angles 

 Substitution 

 Definition of Complementary Angles 

 Angle Addition Postulate

anonymous · Answer

attachment

anonymous · Answer

@ganeshie8 its either a or d

ganeshie8 · Answer

none of them

anonymous · Answer

oh its substitution

ganeshie8 · Answer

in the blank space the correct justification is this :-

1. By Transitive Property of Equality

anonymous · Answer

well that answer choice isn't there.

ganeshie8 · Answer

answer choices are incorrect. call your teacher and clarify