Divyansh M. answered 11/12/16
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IIT Grad for Math and English Tutoring
STATEMENTS REASON
1. m<3 + m<4 = 180 Supplementary Angles
2. m<3 + 82 = 180 Substituting given values
3. m<3 + 82 - 82 = 180 - 82 Subtracting 82 from both sides of the equation
4. m<3 = 98 From statement 3
Hence proved!