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All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classed as follows:-

1 Scalene triangle has 3 acute angles of different sizes

2 Right angle triangle has a 90 degree angle and 2 acute angles

3 Obtuse triangle has an obtuse angle and 2 acute angles

4 Isosceles triangle has 2 equal angles plus another angle

5 Equilateral triangle has 3 equal 60 degee angles

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11y ago

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