EduSahara™ Worksheet

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

−

E

)

(i)

EF

EG
(ii)

FG

EF
(iii)

FG

EG
(iv)

EG

FG
(v)

EF

FG

Question 2

2.

From the given figure,
find
cos

(

90

−

F

)

(i)

EF

DF
(ii)

DE

EF
(iii)

EF

DE
(iv)

DE

DF
(v)

DF

EF

Question 3

3.

From the given figure,
find
tan

(

90

−

K

)

(i)

JK

IK
(ii)

IK

JK
(iii)

JK

IJ
(iv)

IK

IJ
(v)

IJ

IK

Question 4

4.

From the given figure,
find
cosec

(

90

−

G

)

(i)

HI

GH
(ii)

GI

GH
(iii)

GI

HI
(iv)

GH

HI
(v)

HI

GI

Question 5

5.

From the given figure,
find
sec

(

90

−

I

)

(i)

GI

HI
(ii)

HI

GH
(iii)

HI

GI
(iv)

GI

GH
(v)

GH

HI

Question 6

6.

From the given figure,
find
cot

(

90

−

C

)

(i)

BC

AC
(ii)

AC

AB
(iii)

AC

BC
(iv)

AB

AC
(v)

AB

BC

Assignment Key