0160
Figure ABCD is a parallelogram.
1180
А
B
8
E
1009
Base
?
C
D
What is the measure of ZECB if
the measure of ZDEC is 100°?
90°
100°
70°
80°
C
B
D

0160 Figure ABCD is a parallelogram 1180 А B 8 E 1009 Base C D What is the measure of ZECB if the measure of ZDEC is 100 90 100 70 80 C B D class=