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  • 3 sides
  • 3 angels
  • 3 vertices
  • internal angles add up to 1800
  • the 3 sides can have the same length
  • the 3 side scan be unequal length
  • two sides can form a right angle
  • acute angled or obtuse angled
  • two dimensional plane figures
  • The sum of the lengths of any two sides of a triangle always exceeds the length of the third side
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15y ago

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Q: What are 3 things about a triangle?
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