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An obtuse angle is one measuring between 91 and 180 degrees. This person is wrong an obtuse angle is between 91 and 179 degrees, if it was 180 degrees then it would be a srtaight angle.
A right triangle is a triangle that contains a 90 degree angle, an obtuse triangle contains an angle that is from 91 degrees to 179 degrees.
Well, honey, 179 degrees is what we call an obtuse angle. It's bigger than a right angle but not quite a straight angle, so it falls in that awkward in-between category. So, next time you see an angle measuring 179 degrees, just remember it's as sassy as me!
A straight angle (180 degrees) makes a perfectly straight line. Any degree below 180 degrees (0-179 degrees) is NOT a straight angle NOR a straight line. straight angle = 180 degrees straight angle = straight line 180 degrees
91 - 179.