SOLUTION: in parallelogram ABCD, angle A = 3x and angle B 4x 40. what is the measures of angles A,B,C, and D.

Algebra ->  Parallelograms -> SOLUTION: in parallelogram ABCD, angle A = 3x and angle B 4x 40. what is the measures of angles A,B,C, and D.      Log On


   

Question 372631: in parallelogram ABCD, angle A = 3x and angle B 4x 40. what is the measures of angles A,B,C, and D.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB%2BC%2BD=360
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A=C
B=D
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2A%2B2B=360
A%2BB=180
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I'm assuming B=4x%2B40??
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3x%2B4x%2B40=180
7x=140
highlight%28x=20%29
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A=C=60degrees
B=D=4%2820%29%2B40=120degrees