Now, in ∆ABC,

there can be 3 cases

  • All sides are different
  • Two sides are same
  • Three sides are same.

If all three sides are different, it is a scalene triangle.

If two sides are equal, it is an isosceles triangle.

If all three sides are same, it is an equilateral triangle.


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  1. Chapter 5 Class 6 Understanding Elementary Shapes
  2. Concept wise


(a) is equilateral triangle (b) is isosceles triangle (c) is scalene triangle (d) is equilateral triangle (e) is scalene triangle (f) is isosceles triangle

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.