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
      		  −  
      L
      )
  • (i)
    KL
    JK
  • (ii)
    JK
    KL
  • (iii)
    KL
    JL
  • (iv)
    JK
    JL
  • (v)
    JL
    JK
Question 2
2.
    • From the given figure,
    • find
    •  
    • cos
      (
      90
      		  −  
      C
      )
  • (i)
    AB
    AC
  • (ii)
    AC
    BC
  • (iii)
    BC
    AB
  • (iv)
    AB
    BC
  • (v)
    BC
    AC
Question 3
3.
    • From the given figure,
    • find
    •  
    • tan
      (
      90
      		  −  
      I
      )
  • (i)
    IK
    IJ
  • (ii)
    IK
    JK
  • (iii)
    IJ
    JK
  • (iv)
    JK
    IK
  • (v)
    IJ
    IK
Question 4
4.
    • From the given figure,
    • find
    •  
    • cosec
      (
      90
      		  −  
      L
      )
  • (i)
    JL
    JK
  • (ii)
    JL
    KL
  • (iii)
    KL
    JK
  • (iv)
    JK
    JL
  • (v)
    JK
    KL
Question 5
5.
    • From the given figure,
    • find
    •  
    • sec
      (
      90
      		  −  
      F
      )
  • (i)
    DF
    DE
  • (ii)
    EF
    DF
  • (iii)
    DE
    EF
  • (iv)
    DF
    EF
  • (v)
    EF
    DE
Question 6
6.
    • From the given figure,
    • find
    •  
    • cot
      (
      90
      		  −  
      J
      )
  • (i)
    HI
    IJ
  • (ii)
    IJ
    HJ
  • (iii)
    HI
    HJ
  • (iv)
    HJ
    IJ
  • (v)
    HJ
    HI
    Assignment Key
  •  1) (iii)
  •  2) (i)
  •  3) (iii)
  •  4) (ii)
  •  5) (i)
  •  6) (i)