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Class 9 • CBSE 2025-26

Chapter 7: Triangles - Class 9 Mathematics

Step-by-step NCERT solutions for Chapter 7: Triangles.

Chapter 7: Triangles

Q1. In ▹ABC, AB = AC and ∠A = 50°. Find ∠B and ∠C.
Solution
AB = AC → ∠B = ∠C
50° + 2∠B = 180°
∠B = 65°
∠B = ∠C = 65°
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