Question

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Answer 1

when one of the angle in a triangle is >90 degrees, then it is obtuse triangle.
when all are less than 90, then it is acute.

when 2 sides of a triangle are equal, then it is isosceles.
when all 3 sides are equal, then it is equilateral.
when none are equal, then it is scalene.

Answer 2

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Answer 3

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