Stephen C. answered 05/09/19
Geometry demystified
Zero, all triangles have to have 3 sides with a length >0, or else it’s not a triangle by definition.Since the question does not say what type of triangle it is, you can’t assume that it’s a right triangle, if it was, you could use the Pythagorean theorem to solve for the third side if you were given that the triangle was a right triangle, so the only logical answer is 0.