Question 349646
Hi,
Note: the sum of supplementary angles is 180
Let x be the larger.  (x-40) the other angle.
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x + (x-40) = 180
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2x - 40 = 180
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2x = 220
x = 110 is the obtuse angle
Definition of an obtuse angle. An angle between (but not including) 90deg and 180 deg
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check you answer
112 + 70 = 180