Mathematics, 10.01.2021 01:00 MayFlowers

Given: ΔABC Prove: All three angles of ΔABC add up to 180°.

The flowchart with missing reason proves the measures of the interior angles of ΔABC total 180°:

Which reason can be used to fill in the numbered blank space?

Definition of Supplementary Angles

Substitution

Definition of Complementary Angles

Angle Addition Postulate

Given: ΔABC

Prove: All three angles of ΔABC add up to 180°.The flowchart with missing reason prov

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Given: ΔABC Prove: All three angles of ΔABC add up to 180°.

The flowchart with missing r...

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