two adjacent angles of a parallelogram are (2x Plus 10degee) and (3x minus 40 degree) find the measure of all angles of the parallelogram
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Answer:
94 , 94 , 86 , 86
Step-by-step explanation:
acc. to rule = opp. angles of parallelogram are equal and the aum of all angles = 360
(2x + 10) + (3x - 40) + (2x + 10) + (3x - 40) = 360
= 2x + 10 + 3x - 40 + 2x + 10 + 3x - 40 = 360
= 10x - 60 = 360
= 10x = 360 + 60
= 10x = 420
= x = 420 ÷ 10
= x = 42
angles = 94 , 94 , 86 ,86
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