SOLUTION: If AB || CD: What is the measure of angle 3 in degrees if angle 1 = 125 degrees? I said 55 degrees, is this correct? Thank you.

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Question 1169219: If AB || CD:

What is the measure of angle 3 in degrees if angle 1 = 125 degrees? I said 55 degrees, is this correct?

Thank you.
Found 3 solutions by Alan3354, Theo, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
No info given on where angle 1 and angle 3 are.

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
if angle 3 is an adjacent angle on the same side of the transversal, then it is supplementary to angle 1, making it equal to 55 degrees.

here's the picture i was looking at.





Answer by ikleyn(52852) About Me  (Show Source):
You can put this solution on YOUR website!
.

For  ALL  QUESTIONS  relevant to this configuration,  learn from the lesson

    - Parallel lines

in this site.


Also,  for all questions related to  Geometry,  you have this free of charge online textbook
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lesson is the part of this online textbook under the topic
"Basics of angles. Supplementary, complementary angles. Vertical angles. Parallel lines".

Save the link to this online textbook together with its description

Free of charge online textbook in GEOMETRY
https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson

to your archive and use it when it is needed.