SOLUTION: write a two-column proof
given <1 and <2 form a linear pair
<2 and <3 are supplementary
proven <1=<3
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Question 219394: write a two-column proof
given <1 and <2 form a linear pair
<2 and <3 are supplementary
proven <1=<3
Answer by susanaramya(12) (Show Source): You can put this solution on YOUR website!
<1+<2=180(linear pair)
<2=180-<1
<2+<3=180(supplementary)
180-<1+<3=180
<3=180-180+<1
<3=<1
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