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A triangle, as its name suggests, has 3 corners. No more, no less. A triangle itself is 2-D, meaning it is flat. A pyramid would be 3-D.

It also has 3 edges.

Triangles can be of different types:

equilateral - all sides of equal length

isoceles - exactly two sides of equal length and the other of a different length

scalene - no sides of equal length.

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13y ago

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