SOLUTION: I need to prove that verticle angles are congruent. They gave me a diagram that shows 2 intersecting lines . the < on the left it labeled 1 the < on the right is labeled 3. a

Algebra ->  Geometry-proofs -> SOLUTION: I need to prove that verticle angles are congruent. They gave me a diagram that shows 2 intersecting lines . the < on the left it labeled 1 the < on the right is labeled 3. a      Log On


   

Question 59941: I need to prove that verticle angles are congruent.
They gave me a diagram that shows 2 intersecting lines .
the < on the left it labeled 1
the < on the right is labeled 3.
and the < on the top is labeled 2.
Answer by jenrobrody(19) About Me  (Show Source):
You can put this solution on YOUR website!
<1 and <2 are supplementary since they are adjacent. so <1+<2=180
<2 and <3 are supplementary for the same reason. so <2+<3=180
solve for <1: <1 = 180 - <2
solve for <3: <3 = 180 - <2
<1 and <3 are equal to the same thing, so <1 = <3