Theorem 7.7 - Class 9 - Side opposite to greater angle is longer.jpg

  1. Chapter 7 Class 9 Triangles (Term 1)
  2. Serial order wise


Theorem 7.7 :- In any triangle, the side opposite to the larger (greater) angle is longer. Given :- ABC such that C > B . To Prove :- AB > AC . Proof:- Let us assume AC > AB, then B > C Which contradicts our assumptions Hence AB > AC Hence Proved.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.