How Many Faces Does A Triangle Have? - Math Central

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Question from daniela, a student:

how many faces does a triangle have?

Hi Daniela.

The term "face" normally applies to a two-dimensional flat surface on a three- (or more-) dimensional object. So technically, it doesn't apply at all so you could say zero.

On the other hand, a triangle may be one of the faces on such an object (such as a pyramid), so even though it doesn't have a face, the triangle itself represents one face of the object.

Stephen La Rocque.

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Tag » How Many Faces Of A Triangle