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Proof: Statements 1. m/A> mzD; mzB > mzE 1. 2. m2A + m2B> m2D + mzE 2. 4. 3. m2A + m2B + mzC = 180; 3. m 180-m - mzF 5. 6. 7. mzC ​

Proof Statements 1 MAgt MzD MzB Gt MzE 1 2 M2A M2Bgt M2D MzE 2 4 3 M2A M2B MzC 180 3 M 180m MzF 5 6 7 MzC class=