Question

Prove the corresponding angles postulate:
Given: Line AB is Parallel to Line CD
Prove: Corresponding angles are congruent

Answer 1

Well, it's not a postulate if you can prove it. Then it's a theorem. Anyway, drawing a vertical line that intersects the midpoint of the transversal may help.

Answer 2

ooh,. I see how i can prove it now. TNX! :)

Answer 3

No problem! :-)

Answer 4

We can draw a line perpendicular to AB. Because AB and CD parallel, the line is also perpendicular to CD. So now we have created a quadrilateral with angles 90 degrees, 90 degrees, angle #4, and angle #5.
Would this be correct?

Answer 5

? @yakeyglee ?

Answer 6

hi, @uj1024

Answer 7

hey, you forgot something

Answer 8

what?

Answer 9

Hmm yeah that works. I was more going for the congruent triangles, but that works too. :)