Are triangles regular? - Answers

Yes and no. Being irregular means that all sides and angles are different, thus, giving the shape no symmetry. Regular is just the opposite, of course. Triangles can be both because there can be different kinds of triangles. For example, an equilateral triangle would be regular because all its sides and angles are equal. Now a scalene triangle is different, for none of its sides are equal. Though, there is another triangle, called the isosceles triangle, that only has two of its sides equal. Remember, an irregular shape must have all its sides and angles to be unmatched, so that means the isosceles is still regular.