Both statements are true but have different implications.
Both statements are true and they do not have the same meaning.
Statement 1: If it is a triangle, then it has three sides. Statement 2: If it does not have three sides, then it is not a triangle. Both of these statements hold true, as all triangles have three sides, and if an object does not have three sides, it cannot be a triangle. However, they do not have the same meaning because the first statement is a conditional statement implying the presence of three sides in a triangle, while the second statement negates the presence of three sides as a condition for not being a triangle.
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