Ex 6.1 Q4 Q5 Q6 of class 9 math new book || Concept of Radian || lec by sir umer
Автор: Learn Math
Загружено: 2025-07-15
Просмотров: 13
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🎥 Class 9 Math | Exercise 6.1 Q4-6 | Radian, Arc Length & Area of Sector Explained
In this lecture, we will cover Exercise 6.1 Questions 4 to 6 from the Class 9 Math PTB New Book. This lesson focuses on the fundamental concepts of Radian Measure, Arc Length, and Area of Sector.
📌 Topics Covered:
✅ What is a Radian and why it is used in Mathematics
✅ Relationship between Degree and Radian
✅ Formula for Arc Length → L = rθ
✅ Formula for Area of Sector → A = ½ r²θ
✅ Complete step-by-step solution of Q4, Q5, and Q6 with easy explanation
This lecture will help you master the basic applications of radian measure and understand how to calculate arc lengths and sector areas quickly.
📚 Perfect for Class 9 PTBB Students (Lahore Board & Punjab Boards)
💡 Watch till the end for full concept clarity and exam tips!
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#Class9Math #RadianAndArcLength #AreaOfSector #Exercise6_1 #MathWithUmer #PTBMath #Class9NewBook #MathLecture
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