Скачать или смотреть 🔥 Class 9 Maths | Quadrilateral Ex 8.2 Q4 & Q5 NCERT Solutions | Full Explanation | CBSE 2025

🔥 Class 9 Maths | Quadrilateral Ex 8.2 Q4 & Q5 NCERT Solutions | Full Proof Explanation | CBSE 2025 Exam Preparation 🔥


Welcome to Desire Maths Classes, your one-stop destination for Class 9 Maths NCERT Chapter 8 – Quadrilaterals full concept clarity and exam-level preparation for CBSE Board Exam 2025 📚

In this detailed video, we’ll solve Exercise 8.2 Questions 4 and 5 from the NCERT Class 9 Maths Book step by step — with clear geometry reasoning, diagrams, and logical proofs to help you score full marks in your board exams.

✨ In this video you’ll learn:

The Mid-Point Theorem and its applications in trapezium and parallelogram geometry.

How to prove geometric properties using parallel lines and midpoint logic.

The right method to write statements and reasons to make your proof answers perfect for exams.

Easy-to-understand explanation with visual understanding of each step.



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🧩 Questions Discussed in Video:

Q4. ABCD is a trapezium in which AB || DC, BD is a diagonal and E is the mid-point of AD.
A line is drawn through E parallel to AB intersecting BC at F.
To Prove: F is the mid-point of BC.
👉 This question is a direct application of the Mid-Point Theorem and Parallel Line Concept.

Q5. In a parallelogram ABCD, E and F are the mid-points of sides AB and CD respectively.
Show that the line segments AF and EC trisect the diagonal BD.
👉 Here we use the properties of parallelogram, mid-point connection, and proportional division.


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🎥 Video Breakdown:
00:00 – Intro (Desire Maths Classes)
00:04 – Q4 Full Proof Explanation
05:30 – Q5 Full Proof & Logical Discussion
11:58 – Quick Recap & Exam Tips


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📌 Key Concepts Covered:

Mid-Point Theorem and Converse

Properties of Parallelogram and Trapezium

Parallel Line Concept

Ratio and Trisection of Diagonals

Statement-Reason Format for Proof Questions

NCERT Geometry Solutions for CBSE 2025



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📚 Why Watch This Video:
✔️ 100% NCERT Book Based
✔️ Step-by-Step Proof Writing
✔️ Perfect for CBSE Board Exam Preparation 2025
✔️ Helps in School Exams, Unit Tests & Pre-Boards
✔️ Boosts Concept Clarity for Geometry Questions


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🧠 Pro Tips for CBSE Board 2025:
👉 Practice geometry proofs daily to improve your logical reasoning.
👉 Always label your diagram neatly with given data and what to prove.
👉 Remember: Statement–Reason Format = Extra Marks in Board Exams!
👉 Revise all NCERT examples and exercises — CBSE questions often come directly from them.


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🎯 Watch Next:
🔹 Class 9 Maths Quadrilateral Ex 8.1 Full Solutions
🔹 Mid-Point Theorem Statement & Proof Explained
🔹 All Important Theorems of Quadrilaterals (Summary for Boards)


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