12: 12 am thu nov 28
2%
. r22.core. learn. edgenalty. com
reasoning through steps of a proof
given: m || cb
prove: m zabc + m2bac + m2acb = 180°
which statement justifies that angle xab is congruent
to angle abc?
o
corresponding angles of parallel lines cut by a
transversal are congruent.
o
o
vertical angles are congruent.
same-side interior angles of parallel lines cut by a
transversal are supplementary,
o
alternate interior angles of parallel lines cut by a
transversal are congruent.