The triangle has three (3) sides. The triangle is a polygon that contains three sides and three inner angles and three vertices.
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But if a triangle have a front and back side wouldn't the triangle have 5 sides
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Interesting slant (pun). A triangle would have 5 sides if the triangle had a thickness and became an object. A triangle drawn on paper with three lines would still only have three sides. A triangle is a primitive form of geometry (polygon) that can only have three sides in its simplest form. If you add complexity to the triangle with a thickness and count two more sides, then it really isn't the simplest form of the triangle anymore and it becomes another geometrical 3D primitive like a triangular prism.
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A triangle has multiply answers for number of sides but is made up of 3 lines.. this is because when connecting the 3rd line to form the shape you create an "inside". so you could say a triangle has 2 sides, an "outside" and "inside" or you could say 4 sides, an "inside" and 3 "outside facings" or 6 sides 3 "outside facings" and 3 "inside facings". none of these answers are incorrect technically. the important thing is that a triangle is made up of 3 inner angles adding upto 180 degree's.
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A triangle has 6 sides, there are 3 straight edges in AND out side of a triangle.
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I am fairly sure that a triangle has 12 sides (3 insides and 3 outsides on each side).
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4
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4
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4
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How many sides do a triangle have
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How many sides do a triangle have
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How many sides do a triangle have
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4
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HOW MANY SIDES DOES A TRIANGLE HAVE?