Proof: Parallelogram 5
GHJK
GHJ = 60
line JKL
LKG = 120
1.
1.
JKL = 180
GHJ = 60
120
=
LKG
JKL =
LKG +
JKG
line JKL
GHJK
180
=
LKG + 60
JKG = 60
GHJ =
JKG
ProveIt!
by Michael Ferraro <
mferraro@balstaff.org
>.
Copyright ©2010. All rights reserved.