0o | 30o | 45o | 60o | 90o | |
sin ![]() |
0 | ![]() |
![]() |
![]() |
1 |
Cos ![]() |
1 | ![]() |
![]() |
![]() |
0 |
Tan ![]() |
0 | ![]() |
1 | ![]() |
N.D |
Cosec ![]() |
N.D | 2 | ![]() |
![]() |
1 |
Sec ![]() |
1 | ![]() |
![]() |
2 | N.D |
Cot ![]() |
N.D | ![]() |
1 | ![]() |
0 |
Q. 24. Sin (90- ) =cos
tan (90-
) =cot
sec (90-
) =cos
cos (90- ) =sin
cot (90-
) =tan
cosec (90-
) =sec
Q.25.
A +
; 1 +
;
+ 1=
A
A = 1 -
;
A -
;
A -
A = 1 -
;
A =
;
A =
Q. 26. Area of the sector =
Q. 27. Length of an arc of a sector (l) =
Q. 28. Perimeter of sector = l+2r
Q. 29. Area of an equilateral triangle =
Q. 30. Volume of a cube =
Q. 31. Volume of a cuboid = l*b*h
Q. 32. Lateral surface area of a cube = 4
Q. 33. L.S.A of a cuboid (area of four wall) = 2 h ( l + b)
Q. 34. Total surface area of a cube =
Q. 35. T.S.A of a cuboid = 2 (lb + bh + hl )
Q. 36. Volume of a cylinder =
Q. 37. Curved surface area of cylinder = 2 h
Q. 38. T.S.A of cylinder = 2
Q. 39. Volume of a cone =
Q. 40. C.S.A of a cone = where l =
where l is slant height