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RS Aggarwal - Mathematics

Triangles

1. Real Numbers
2. Polynomials
3. Linear Equations in Two Variables
Triangles
5. Trigonometric Ratios
6. T-Ratios of Some Particular Angles
7. Trigonometric Ratios of Complementary Angles
8. Trigonometric Identities
10. Quadratic Equations
9. Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph and Ogive
11. Arithmetic Progression
12. Circles
13. Constructions
14. Heights and Distances
15. Probability
16. Coordinate Geometry
17. Perimeter and Area of Plane Figures
18. Area of Circle, Sector and Segment
19. Volume and Surface Area of Solids
20. Summative Assessment I
21. Summative Assessment II

Exercise 4A

1 A 1 B 1 C 1 D 2 A 2 B 2 C 3 A 3 B 3 C 3 D 4 A 4 B 4 C 4 D 5 6 7 8 9 10 11 12 13

Exercise 4B

1 A 1 B 1 C 1 D 1 E 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Exercise 4C

1 2 3 4 5 6 7 8 9 10 11 12 13

Exercise 4D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Exercise 4E

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Multiple Choice Questions (MCQ)

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Formative Assessment (Unit Test)

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Q. 495.0( 1 Vote )

In an isosceles Δ A. 30°

B. 45°

C. 60°

D. 90°

Class 10th RS Aggarwal - Mathematics Triangles

Answer :

AB² = 2AC²

AB² = AC² + AC²

AB² = AC² + BC²

Therefore, it is an isosceles triangle right angled at C. ∠ C = 90°

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