Math 10 Chapter 8 - Part B


1. In a right angled triangle ABC in which m|B = 90othe side opposite to < A = ____________


2. In a right angled triangle ABC in which m AC = 10cmm BC = 6cm then mAB = ___________




3. Sin2q = 1 � ( ___________)




4. tan2 q = Sec2 q � ( ________________ )




5. Cosec2 q � ( _____________ ) = 1




6. The angle made between the horizontal line AD and a line from the eye �A� to the object �C� (below D) is called the angle of elevation.


7. If side of a square field is 60m long, the lengths of the diagonals of the field is equal to 60Ö2


8. In a right angled triangle ABC in which m B = 90o, mA = 30o, m C = 60o,
a = 2 then b= 4


9. In a right angled triangle POR in which m|R = 90o m|P = 60o, m|Q = 30o Ö p = 3, r = 2 then q = 2


10. If Sin45o = Cos45o =Ö 1/ 2 then 5CoS45o � 3Sin 45o = 2


11. (1+Sin q) (1-Sin q) = 1/Sec2 q


12. In right angled ABC, m |C = 90o and m|A = m|B, then a = ____________




13. CoSec (90o � Φ) = _____________




14. In right angled triangle ABC, if m|C = 90o then by Pythagoras theorem C2 = _________




15. Sin2q + Cos2 q= ___________




16. 1 + Tan2 q = _____________




17. The value of Cot 60o = ________




18. (Sin x + Cos x)2 =




19. Sinq x Secq/Tanq = ________________




20. Cosq FONT FACE="Symbol">Ö1+ Cot2 = _______________







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