Given and Proves

Question

Given L || m

Prove <1 is supp to <2

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diagram •—2/3—•l

•—-/1—•m

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Answer 1

<2and <3 are adjacent and supplementary because the sum of them is 180

<1 an<3 are corresponding and congruent angles for being at the same side of the bisector

then, <1 and <2 are supplementary and sum 180