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It has 1 obtuse angle and 2 acute angles and the 3 interior angles add up to 180 degrees
There are 3 obtuse angles. All 3 exterior angles are obtuse. (This is, admittedly, a bit of trick question!)
An obtuse angle is any angle larger than 90°. An obtuse angle is not assigned any specific value.
2, obtuse and reflex angles are larger than right angles A straight angle is larger.
Over 90 but under 180 degrees. any lower is a right angle or acute angle, and higher is a straight line or a reflex angle.