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Class 10 Maths Chapter 8 Exercise 8.4 New Book NBF - Ex 8.4 class 10 maths - federal board


in this video, we solve Exercise 8.4 (Applications of Trigonometry) from Class 10 Mathematics (Federal Board – National Book Foundation). Learn how to calculate the area of triangles and parallelograms using trigonometric formulas like sine rule, cosine rule, and Heron’s formula. Perfect for board preparation with step-by-step explanations. Don’t forget to like, comment, and subscribe!


time coads:
00:00 Introduction
00:12 Important point
03:35 Question No 1 (i)
05:17 Question No 1 (ii)
06:15 Question No 1 (iii)
07:05 Question No 1 (iv)
08:03 Question No 1 (v)
08:49 Question No 1 (vi)
10:55 Question No 1 (vii)
13:12 Question No 1 (viii)
15:12 Question No 1 (ix)
17:06 Question No 1 (x)
19:03 Question No 1 (xi)
21:51 Question No 1 (xii)
24:11 Question No 1 (xiii)
25:58 Question No 1 (xiv)
28:00 Question No 1 (xv)
30:00 Question No 1 (xvi)
32:01 Question No 1 (xvii)

34:03 Question No 2
40:16 Question No 3
43:15 Question No 4
53:45 Question No 5
57:08 Question No 6
1:02:15 Question No 7
1:07:06 Question No 8
1:12:14 Question No 9
1:22:25 Question No 10
1:25:17 Question No 11

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