SOLUTION: in a parallelogram one angle is 4/5th of the adjacent angle. Determine the angles of the parallelogram

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Question 439507: in a parallelogram one angle is 4/5th of the adjacent angle. Determine the angles of the parallelogram
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
2x+2*(4/5)*x=360
x+4x/5=180
1.8x=180
18x=1800
x=100
4x/5=80