SOLUTION: in parallelogram abcd, m<b=60 find m<c in degres

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Question 317332: in parallelogram abcd, m
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I assume the angle are in order a,b,c,d.
a=c
b=d=60
The four angles in the parallelogram sum to 360.
a%2B60%2Bc%2B60=360
2a=240
a=120
highlight%28c=120%29