Скачать или смотреть Class 10 Maths | Basic Proportionality Theorem | Prove BD/DC = BA/AC | Chapter 6 Important 5-Mark

Class 10 Maths | Basic Proportionality Theorem | Prove BD/DC = BA/AC | Chapter 6 Important 5-Mark Question

In ΔABC, AD is the angle bisector of ∠A.BA is produced to E such that CE ∥ AD. Prove that BD/DC=BA/AC

Description:
Unlock the complete explanation of one of the most important Class 10 Maths questions from Chapter 6: Triangles.
In this video, we solve a 5-mark CBSE Board question based on:

✔ Basic Proportionality Theorem (BPT)
✔ Angle Bisector Theorem
✔ Application in ΔABC to prove BD/DC = BA/AC

Using the diagram where AD is the angle bisector of ∠A and BA is extended to E such that CE ∥ AD.

This video gives a step-by-step, easy-to-understand proof perfect for:
✔ CBSE Class 10 Board Exam Preparation
✔ NCERT Chapter 6 Triangles
✔ Important 5-Mark Questions
✔ PYQs (Previous Year Questions)
✔ Students wanting full marks in geometry

🧠 What You Will Learn in This Video
Basic Proportionality Theorem statement
How to use BPT in real problems
How angle bisector theorem helps in triangles
How CE ∥ AD creates similar triangles
Complete proof of BD/DC = BA/AC
Perfect exam presentation method
Tips to avoid common mistakes

📘 Chapter Details
NCERT Class 10 Maths
Chapter 6 – Triangles
Related Theorems:
Basic Proportionality Theorem (Thales’ Theorem)
Angle Bisector Theorem
Similarity of Triangles


Related Search:
Basic Proportionality Theorem Class 10
BPT theorem class 10 explanation
Class 10 Maths Chapter 6 Exercise Problems
NCERT Class 10 Maths Triangles Important Questions
Angle Bisector Theorem Class 10
Class 10 Maths PYQ 5 Marks
Similarity of Triangles Class 10
Prove BD/DC = BA/AC Class 10
Class 10 Maths theorem proofs
CBSE Class 10 important questions
Class 10 geometry theorems
Maths class 10 triangles full chapter
Class 10 board exam preparation maths
Basic proportionality theorem proof in easy steps
Class 10 maths triangles chapter full explanation
Angle bisector theorem proof with diagram
How to prove BD/DC = BA/AC using BPT
CBSE class 10 maths important theorem questions
Best video for class 10 triangles chapter

class 10 maths | basic proportionality theorem | bpt theorem proof | angle bisector theorem class 10 | triangles chapter class 10 | bd/dc = ba/ac proof | class 10 maths important questions | cbse board exam 2025 | class 10 maths chapter 6 | NCERT maths class 10 triangles


#class10maths #cbseboard2026 #class10pyq #girishsir #mathnerd #study #studytips #cbse2025 #cbse2025_26 #trianglesclass10 #class10triangles #class10mathspyqs