Math 10 Chapter 8 - Part A


1. Trigonometry is the branch of the mathematics, which deals with sides and ____________ of a triangle.


2. In a right angled triangle, the side opposite to right angle is called ___________.



3. Cosec θ = Hypotenuse



4. tan θ = Pendicular



5. Sin ___________ | θ = Cos θ




6. Cos θ ( _________ ) = 1




7. __________ tan θ = 1




8. tan 60o = tan (90o | 30o) = Cot __________.




9. Cos 45o = Cos (90o | 45o) = Sin __________.




10. In right angled triangle ABC Cos Φ =__________




11. If in a right angle triangle ABC, the angle B is of 90o and C is an acute angle of 60o then Cosec 60o = ___________




12. tan2 θ + 1 = ____________




13. In right angled triangle ABC tan θ _______




14. tan θ = _________



15. Without using the calculator tan30o = ___________




16. Without using the calculator 2 Sin 60o Cos 60o = ___________




17. Without using the calculator 2 Sin 45o + 2 Cos 45o = ______________




18. In a right angled triangle ABC, m|B = 90o, m|A = 30o, then m|B = __________




19. CosΦ/SinΦ = __________



20. Sin θ/Cosecθ + Cos / Sec θ = ______________







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