Question

How would you prove that angle 2 is congruent to angle 4?

Answer 1

oohh geometry my old pal :) geometry was much more fun than algebra for me xD

ok so its exterior angles and the parallel lines therom I think
I don't remember all the little theroms

Answer 2

sorry the converse of the parallel lines therom and the converse of the exterior angles therom

Answer 3

\[converse\]

Answer 4

well angle 1 = angle 4.... as they are vertically opposite angles

then angle 4 = angle 2 corresponding angles in parallel lines

which is a proof for parallel lines..