EduSahara™ Assignment
Name : Trigonometric Ratios of Complementary Angles
Chapter : Trigonometrical Ratios
Grade : ICSE Grade IX
License : Non Commercial Use
Question 1
1.
    • From the given figure,
    • find
    •  
    • sin
      (
      90
      		  −  
      H
      )
  • (i)
    FG
    FH
  • (ii)
    GH
    FH
  • (iii)
    FG
    GH
  • (iv)
    FH
    FG
  • (v)
    GH
    FG
Question 2
2.
    • From the given figure,
    • find
    •  
    • cos
      (
      90
      		  −  
      E
      )
  • (i)
    EF
    FG
  • (ii)
    FG
    EG
  • (iii)
    EG
    EF
  • (iv)
    EF
    EG
  • (v)
    FG
    EF
Question 3
3.
    • From the given figure,
    • find
    •  
    • tan
      (
      90
      		  −  
      D
      )
  • (i)
    BD
    CD
  • (ii)
    CD
    BC
  • (iii)
    BD
    BC
  • (iv)
    CD
    BD
  • (v)
    BC
    BD
Question 4
4.
    • From the given figure,
    • find
    •  
    • cosec
      (
      90
      		  −  
      E
      )
  • (i)
    CD
    DE
  • (ii)
    CE
    CD
  • (iii)
    CD
    CE
  • (iv)
    CE
    DE
  • (v)
    DE
    CD
Question 5
5.
    • From the given figure,
    • find
    •  
    • sec
      (
      90
      		  −  
      H
      )
  • (i)
    FH
    GH
  • (ii)
    FH
    FG
  • (iii)
    GH
    FG
  • (iv)
    FG
    GH
  • (v)
    GH
    FH
Question 6
6.
    • From the given figure,
    • find
    •  
    • cot
      (
      90
      		  −  
      G
      )
  • (i)
    GI
    GH
  • (ii)
    GH
    GI
  • (iii)
    HI
    GH
  • (iv)
    GI
    HI
  • (v)
    HI
    GI
    Assignment Key
  •  1) (ii)
  •  2) (ii)
  •  3) (ii)
  •  4) (iv)
  •  5) (ii)
  •  6) (iii)