Exercise 7.2 class 10 maths | math city

Exercise 7.2 class 10 maths chapter 7 Introduction to Trigonometry complete solution Punjab Textbook Board and Federal Board, Pakistan
What is an arc?
What is a segment of circle?
What is a sector of circle?
How to find the length of an arc (l) when angle (θ) and radius (r) is given?
How to find the angle (θ) when length of the arc (l) and radius (r) is given?
How to find the radis (r) when length of the arc (l) angle (θ) is given?
How to find area of the sector when angle (θ) and radius (r) is given?
00:00 Introduction
02:55 l = r θ proof
09:07 Area of the sector = 1/2 r^2 θ proof
12:39 Q 1
15:00 Q 2
20:54 Q 3
25:20 Q 4
26:51 Q 5
29:47 Q 6
31:50 Q 7
35:03 Q 8
38:07 Q 9
44:03 Q 10
47:00 Q 11
54:48 Q 12
56:58 Q 13