Question

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Two adjacent angles of parallelogram are (8x + 115) and (2x + 45)'. Find the measure
the angles of the parallelogram.
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Answer 1

(^=degree)
The sum of two adjacent angle are 360^
So,we can add these angle.
(8x+115)+(2x+45)=360
8x+115+2x+45=360
8x+2x+115+45=360
10x+160=360
10x=360-160
10x=200
x=200/10
x=20