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Theorem 7.7- Class 9th - Side opposite to the larger (greater) angle is longer - Side inequality

  1. Chapter 7 Class 9 Triangles
  2. Serial order wise
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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 provides courses for Mathematics from Class 9 to 12. You can ask questions here.