Question

If two parallel lines are cut by a transverse, then the sum of the two exterior angles on one side of the traversal is what?

Answer 1

so 180 degree?

Answer 2

Since the lines are parallel, angles 1 and 3 are congruent because they are corresponding angles. So m<1 = m<2
Angles 2 and 3 are supplementary, so m<2 + m<3 = 180
Therefore by substitution, m<2 + m<1 = 180

Answer 3

Yes, you're right

Answer 4

I'm getting a bit better at geometry!!! yay:) No it's time to focus more on traversals and proofs

Answer 5

That's good. If you have questions, post them.

Answer 6

I'm about to post one about finding angles in a traversal

Answer 7

ok, I'll look for it.