Apartial proof was constructed given that mnop is a
parallelogram.
which statement should fill in the blank in the last line of the
prool?
2m is supplementary to 20
2n is supplementary to zp
zm zp
un zp
by the definition of a parallelogram,
mn / po and mp // no.
using mp as a transversal, 2m and
zp are same-side interior angles, so they
are supplementary
using no as a transversal, zn and
20 are same-side interior angles, so they
are supplementary
using op as a transversal, 20 and zp are
same-side interior angles, so they are
supplementary
therefore,
because
they are supplements of the same angle.