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Sahay Sir > Question Answers > NCERT Class 9 > Maths > Chapter 7 - Triangles > 20. Prove that in a triangle, other than an equilateral triangle, angle opposite the longest side is greater than 2/3 of a right angle.

20. Prove that in a triangle, other than an equilateral triangle, angle opposite the longest side is greater than 2/3 of a right angle.

20. Prove that in a triangle angle opposite the longest side is greater than 2/3 of a right angle. other than an equilateral triangle