Class 9 Maths | Chapter 7 – Triangles | Exercise 7.3 Question 1

Описание: In this video, JP Sir solves Exercise 7.3 Question 1 from Chapter 7 – Triangles (Class 9 NCERT Maths) with a clear figure and step-by-step proof. This question beautifully uses isosceles triangle properties along with triangle congruence (SSS/RHS) to prove multiple results from a single construction.

📘 What you will learn in this video:
🔹 Understanding two isosceles triangles ABC and DBC on the same base BC
🔹 Drawing and using the construction of AD intersecting BC at point P
🔹 Proving ∆ABD ≅ ∆ACD using congruence criteria
🔹 Proving ∆ABP ≅ ∆ACP with proper reasoning
🔹 Showing that AP bisects ∠A and ∠D
🔹 Proving that AP is the perpendicular bisector of BC
🔹 Writing neat, step-by-step exam-oriented geometry proofs

🎯 Why this question is important:
🔹 Combines isosceles triangle properties + congruence rules
🔹 One question, multiple results – very exam-relevant
🔹 Builds strong understanding of perpendicular bisector and angle bisector
🔹 Improves diagram interpretation and logical flow in proofs

👉 Watch till the end to see how one construction leads to four powerful conclusions.
👍 Like, Share & Subscribe to Math Station for more Class 9 Maths videos by JP Sir.

🔖 Hashtags
#Class9Maths
#Chapter7Maths
#Triangles
#Exercise7_3
#NCERTClass9Maths
#CBSEClass9
#TriangleCongruence
#IsoscelesTriangle
#GeometryProof
#JPSir