Question: Triangle sum theorem The sum of the interior angle measures of a triangle is 180 A D 1 Proof B 1 DE 2 Given AABC

Triangle sum theorem The sum of the interior angle measures of

Triangle sum theorem The sum of the interior angle measures of a triangle is 180 A D 1 Proof B 1 DE 2 Given AABC with DE AC Prove ml m 2 m 3 180 2 21 DBA 3 C F 3 m1 m DB 1 Civer Oiver

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