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# Class-9 Trigonometry Worksheet 1

1. The value of Tan A is _____.

a) 1012                     b) 65
c) 56                        d) None of these

2. The value of Cos A is _____.

a) 43                     b) 34
c) 35                     d) 53

3. The value of Sin C is _____.

a) 43                     b) 34
c) 53                     d) 35

4. The value of Cosec C is _____.

a) 45                     b) 34
c) 53                     d) 35

5. The value of Cot A is _____.

a) 1012                     b) 65
c) 56                        d) None of these

6. Sin2A + Cos2A = 0. Mark True / False.

a) True                     b) False

7. Tan A = Sin ACos A. Mark True / False.

a) True                     b) False

8. Sin A = 1Cos A. Mark True / False.

a) True                     b) False

9. Cosec A = 1Sin A. Mark True / False.

a) True                     b) False

10. Cot A = 1Tan A. Mark True / False.

a) True                     b) False

11. Sec2A − Tan2A = _____.

a) 0                   b) -1
c) 1                   d) None of these

12. 1 + Cot2A = _____.

a) Sec2A                    b) Cos2A
c) Tan2A                    d) Cosec2A

13. Sin A = _____.

a) BaseHypotenuse        b) HypotenuseBase
c) HeightBase                d) HeightHypotenuse

14. Sec A = _____.

a) HypotenuseBase         b) BaseHypotenuse
c) HeightBase                 d) HeightHypotenuse

15. Cot A = _____.

a) HypotenuseBase             b) BaseHeight
c) HeightBase                    d) HeightHypotenuse

16. If Sin A = 12, then the value of Tan A = _____.

a)  3                      b) 2
c) 13                      d) 32

17. If Tan A = 1. then the value of Cos A = _____.

a)  3                      b)  2
c) 12                      d) 32

18. If Cos A = 1, then the value of Cot A = _____.

a)  3                  b)  2
c) 12                  d) Not defined

19. If Cos A = 45, then the value of Tan A = _____.

a) 35                    b) 34
c) 53                    d) 43

20. The value of Sin 45o + Cos 45o = _____.

a) 12                  b) 32
c) 1                      d)  2

Trigonometry Worksheet - 1

Trigonometry Worksheet - 2

Trigonometry Worksheet - 3