EduSahara™ Assignment
Name : Basics of Trigonometric Ratios
Chapter : Trigonometrical Identities
Grade : ICSE Grade X
License : Non Commercial Use
Question
1
1.
In the given figure,
sin
N
=
(i)
LM
NM
(ii)
LM
LN
(iii)
NL
ML
(iv)
NM
LM
(v)
NM
OM
Question
2
2.
In the given figure,
cos
I
=
(i)
GI
GH
(ii)
HI
HG
(iii)
JI
JH
(iv)
IG
IH
(v)
HI
GI
Question
3
3.
In the given figure,
tan
F
=
(i)
FD
EF
(ii)
DE
EF
(iii)
FE
GF
(iv)
FE
DF
(v)
DE
FD
Question
4
4.
In the given figure,
cot
F
=
(i)
FG
GH
(ii)
HG
IH
(iii)
FH
HG
(iv)
HF
FG
(v)
HF
GH
Question
5
5.
In the given figure,
sec
O
=
(i)
RP
QP
(ii)
PO
QO
(iii)
OQ
OP
(iv)
OP
OQ
(v)
QP
QO
Question
6
6.
In the given figure,
cosec
M
=
(i)
LK
MK
(ii)
ML
KL
(iii)
KL
ML
(iv)
NL
ML
(v)
KM
KL
Question
7
7.
In the given figure,
sin
Q
=
(i)
35
39
(ii)
35
37
(iii)
1
(iv)
33
37
Question
8
8.
In the given figure,
cos
C
=
(i)
12
35
(ii)
12
37
(iii)
10
37
(iv)
14
37
(v)
4
13
Question
9
9.
In the given figure,
tan
R
=
(i)
15
8
(ii)
3
2
(iii)
17
8
(iv)
13
8
(v)
5
2
Question
10
10.
In the given figure,
cot
C
=
(i)
37
12
(ii)
7
2
(iii)
11
4
(iv)
5
2
(v)
35
12
Question
11
11.
In the given figure,
sec
N
=
(i)
19
8
(ii)
17
8
(iii)
17
6
(iv)
17
10
(v)
15
8
Question
12
12.
In the given figure,
cosec
P
=
(i)
3
(ii)
13
7
(iii)
13
5
(iv)
13
3
(v)
11
5
Question
13
13.
sin
I
=
(i)
1
tan
I
(ii)
1
sec
I
(iii)
1
cosec
I
(iv)
1
cot
I
(v)
1
cos
I
Question
14
14.
cos
C
=
(i)
1
cosec
C
(ii)
1
sin
C
(iii)
1
sec
C
(iv)
1
tan
C
(v)
1
cot
C
Question
15
15.
tan
J
=
(i)
1
cot
J
(ii)
1
cos
J
(iii)
1
cosec
J
(iv)
1
sin
J
(v)
1
sec
J
Question
16
16.
cot
A
=
(i)
1
tan
A
(ii)
1
cosec
A
(iii)
1
sec
A
(iv)
1
cos
A
(v)
1
sin
A
Question
17
17.
sec
I
=
(i)
1
cosec
I
(ii)
1
sin
I
(iii)
1
cot
I
(iv)
1
cos
I
(v)
1
tan
I
Question
18
18.
cosec
B
=
(i)
1
cot
B
(ii)
1
tan
B
(iii)
1
cos
B
(iv)
1
sin
B
(v)
1
sec
B
Question
19
19.
In
△LMN
, right angled at
M
,
if
LM = 35 cm
and
MN = 12 cm
,
find
sin
L
(i)
12
35
(ii)
4
13
(iii)
14
37
(iv)
12
37
(v)
10
37
Question
20
20.
In
△CDE
, right angled at
D
,
if
CD = 8 cm
and
DE = 6 cm
,
find
cos
E
(i)
3
5
(ii)
1
(iii)
1
5
(iv)
3
7
Question
21
21.
In
△BCD
, right angled at
C
,
if
BC = 15 cm
and
CD = 8 cm
,
find
tan
D
(i)
15
8
(ii)
5
2
(iii)
13
8
(iv)
3
2
(v)
17
8
Question
22
22.
In
△MNO
, right angled at
N
,
if
MN = 8 cm
and
NO = 6 cm
,
find
cot
O
(i)
1
4
(ii)
3
2
(iii)
5
4
(iv)
3
4
(v)
1
2
Question
23
23.
In
△LMN
, right angled at
M
,
if
LM = 15 cm
and
MN = 8 cm
,
find
sec
N
(i)
17
6
(ii)
19
8
(iii)
17
8
(iv)
15
8
(v)
17
10
Question
24
24.
In
△PQR
, right angled at
Q
,
if
PQ = 15 cm
and
QR = 8 cm
,
find
cosec
R
(i)
1
(ii)
19
15
(iii)
17
15
(iv)
17
13
Assignment Key
1) (ii)
2) (v)
3) (ii)
4) (i)
5) (iii)
6) (v)
7) (ii)
8) (ii)
9) (i)
10) (v)
11) (ii)
12) (iii)
13) (iii)
14) (iii)
15) (i)
16) (i)
17) (iv)
18) (iv)
19) (iv)
20) (i)
21) (i)
22) (iv)
23) (iii)
24) (iii)
