ProveIt! Two-Column Proofs Practice Tool

Proof: Parallelogram 8

G =

JHI

GHJ =

GKJ

line GHI

Quadrilateral GHJK is a pgram

pgram

1.

1.

Quadrilateral GHJK is a pgram

pgram

G =

JHI

line GHI

angle

GKJ and

angle

G are supplementary

line GHI $\|\|$ line JKL

180 $\^o$ =

GKJ +

G

GHI = 180 $\^o$

line GK $\|\|$ line HJ

GHI =

GHJ +

JHI

GHJ =

GKJ

ProveIt! by Michael Ferraro <mferraro@balstaff.org>.
Copyright ©2010. All rights reserved.