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2
2, obtuse and reflex angles are larger than right angles A straight angle is larger.
There are 90 degrees in a right angle There are 180 degrees on a straight line There are 360 degrees in a full circle
a striaght angle is always 180% but a obtuse angles is 91% OR higher
The sum of the interior and exterior angles at the same vertex is always 180 degrees or 1 straight angle. So, if there are 1000 st angles, then there must be 1000 vertices and so 1000 sides.