Respuesta :

How you know if a shape is a triangle from the side is because only two of the sides would be the same and the bottom one would be a different length then the two sides.

Hope this helped. Have a great day! :D
BrainIess
A triangle's side can be any length.

You can tell if a shape is a triangle by counting the number of sides.

Every triangle will always have 3 sides.

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