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Classification of Triangle
According to Sides1. Scalene Triangle:A triangle in which all the three sides are unequal in length is called a scalene triangle.AC > BC >AB 2. Isosceles Triangle:A triangle in which two of its sides are equal is called isosceles triangle.PQ = PR = 6 cm. 3. Equilateral Triangle:A triangle in which have all its three sides equal in length is called an equilateral triangle.LM = MN = NL = 5.5 cm According to Angles1. Acute Triangle:A triangle which has all the three angles acute that is, less than 90°, is called an acute angled triangle or acute triangle.2. Obtuse Triangle:A triangle whose one angle is obtuse or more than 90° but less than 180° is called an obtuse angled triangle or obtuse triangle.3. Right Triangle:A triangle whose one angles is a right angle (that is 90°) is called a right angled triangle or right angle.
5th Grade Geometry


