EduSahara™ Assignment
Name : Angle Concepts
Chapter : Lines and Angles
Grade : CBSE Grade IX
License : Non Commercial Use
Question
1
1.
Which of the following figures represent an angle?
(i)
fig 3
(ii)
fig 1
(iii)
fig 4
(iv)
fig 5
(v)
fig 2
Question
2
2.
The name of angle 3 in the given figure is
(i)
∠IOJ
(ii)
∠HOI
(iii)
∠JOK
(iv)
∠KOF
(v)
∠FOG
Question
3
3.
Which of the following is the largest angle in the given figure?
(i)
∠GOI
(ii)
∠FOG
(iii)
∠FOH
(iv)
∠FOI
(v)
∠GOH
Question
4
4.
The name of the given angle is
(i)
∠MNO
(ii)
∠MN
(iii)
∠MON
(iv)
∠NMO
(v)
△MON
Question
5
5.
Identify the figure below
(i)
decagon
(ii)
nonagon
(iii)
heptagon
(iv)
octagon
(v)
angle
Question
6
6.
The following angle represents
(i)
complete angle
(ii)
acute angle
(iii)
reflex angle
(iv)
obtuse angle
(v)
straight angle
Question
7
7.
The following angle represents
(i)
acute angle
(ii)
complete angle
(iii)
reflex angle
(iv)
right angle
(v)
obtuse angle
Question
8
8.
The following angle represents
(i)
zero angle
(ii)
obtuse angle
(iii)
acute angle
(iv)
right angle
(v)
reflex angle
Question
9
9.
The following angle represents
(i)
acute angle
(ii)
reflex angle
(iii)
complete angle
(iv)
obtuse angle
(v)
straight angle
Question
10
10.
The following angle represents
(i)
reflex angle
(ii)
straight angle
(iii)
obtuse angle
(iv)
right angle
(v)
complete angle
Question
11
11.
The following angle represents
(i)
zero angle
(ii)
acute angle
(iii)
obtuse angle
(iv)
right angle
(v)
reflex angle
Question
12
12.
The following angle represents
(i)
complete angle
(ii)
acute angle
(iii)
reflex angle
(iv)
zero angle
(v)
right angle
Question
13
13.
The following angle represents
(i)
straight angle
(ii)
right angle
(iii)
complete angle
(iv)
obtuse angle
(v)
acute angle
Question
14
14.
The following angle represents
(i)
zero angle
(ii)
straight angle
(iii)
acute angle
(iv)
reflex angle
(v)
obtuse angle
Question
15
15.
The following angle represents
(i)
obtuse angle
(ii)
reflex angle
(iii)
right angle
(iv)
complete angle
(v)
straight angle
Question
16
16.
The following angle represents
(i)
obtuse angle
(ii)
straight angle
(iii)
complete angle
(iv)
acute angle
(v)
right angle
Question
17
17.
The following angle represents
(i)
complete angle
(ii)
right angle
(iii)
zero angle
(iv)
straight angle
(v)
obtuse angle
Question
18
18.
The following angle represents
(i)
right angle
(ii)
zero angle
(iii)
complete angle
(iv)
reflex angle
(v)
straight angle
Question
19
19.
The following angle represents
(i)
zero angle
(ii)
right angle
(iii)
complete angle
(iv)
reflex angle
(v)
acute angle
Question
20
20.
Which of the following are adjacent angles in the below figure?
(i)
∠GOH , ∠IOJ
(ii)
∠JOF , ∠GOH
(iii)
∠HOI , ∠JOF
(iv)
∠FOG , ∠GOH
(v)
∠IOJ , ∠GOH
Question
21
21.
Which of the following angles form a linear pair?
(i)
(∠COD,∠DOE)
(ii)
(∠BOC,∠COD)
(iii)
(∠AOB,∠BOC)
(iv)
(∠DOE,∠EOF)
(v)
(∠EOF,∠FOA)
Question
22
22.
Find the value of 'c' in the following figure
(i)
47°
(ii)
42°
(iii)
67°
(iv)
52°
(v)
37°
Question
23
23.
Find the value of 'a' in the following figure
(i)
7
(ii)
10
(iii)
11
(iv)
9
(v)
13
Question
24
24.
Find the value of f in the figure below
(i)
13
(ii)
12
(iii)
11
(iv)
8
(v)
10
Question
25
25.
Which of the following are true?
a)
Small letters are used to represent lines
b)
A ray has an infinite number of points on it
c)
A line has an infinite number of points on it
d)
Capital letters are used to represent points
e)
The length of a line segment cannot be determined
(i)
{e,b}
(ii)
{e,d,a}
(iii)
{e,a}
(iv)
{e,c}
(v)
{a,b,c,d}
Question
26
26.
Which of the following points are collinear?
a)
A
,
E
,
C
b)
C
,
E
,
D
c)
B
,
E
,
C
d)
E
,
D
,
C
e)
D
,
E
,
B
(i)
{c,e}
(ii)
{a,e}
(iii)
{b,a}
(iv)
{d,b,a}
(v)
{c,e,a}
Question
27
27.
Which of the given figures is correct?
(i)
II
(ii)
I
(iii)
IV
(iv)
III
Question
28
28.
The complementary angle of
42°
is
(i)
63°
(ii)
48°
(iii)
58°
(iv)
53°
(v)
78°
Question
29
29.
The supplementary angle of
32°
is
(i)
153°
(ii)
163°
(iii)
178°
(iv)
158°
(v)
148°
Question
30
30.
Find the complementary angles pair in the following
(i)
40°,50°
(ii)
70°,70°
(iii)
80°,80°
(iv)
50°,60°
(v)
30°,50°
Question
31
31.
Find the supplementary angles pair in the following
(i)
124°,76°
(ii)
114°,66°
(iii)
144°,86°
(iv)
104°,66°
(v)
154°,96°
Question
32
32.
Which of the following is an acute angle?
(i)
360°
(ii)
0°
(iii)
307°
(iv)
85°
(v)
170°
Question
33
33.
Which of the following is an obtuse angle?
(i)
125°
(ii)
90°
(iii)
360°
(iv)
0°
(v)
180°
Question
34
34.
Which of the following is a right angle?
(i)
0°
(ii)
90°
(iii)
360°
(iv)
147°
(v)
34°
Question
35
35.
Which of the following is a straight angle?
(i)
0°
(ii)
180°
(iii)
360°
(iv)
105°
(v)
236°
Question
36
36.
Which of the following is a complete angle?
(i)
122°
(ii)
360°
(iii)
180°
(iv)
325°
(v)
90°
Question
37
37.
Which of the following is a zero angle?
(i)
0°
(ii)
180°
(iii)
26°
(iv)
360°
(v)
90°
Question
38
38.
Which of the following is a reflex angle?
(i)
73°
(ii)
180°
(iii)
160°
(iv)
0°
(v)
322°
Assignment Key
1) (i)
2) (ii)
3) (iv)
4) (iii)
5) (v)
6) (ii)
7) (v)
8) (iv)
9) (v)
10) (v)
11) (i)
12) (iii)
13) (v)
14) (v)
15) (iii)
16) (ii)
17) (i)
18) (ii)
19) (iv)
20) (iv)
21) (iv)
22) (v)
23) (ii)
24) (iii)
25) (v)
26) (ii)
27) (iv)
28) (ii)
29) (v)
30) (i)
31) (ii)
32) (iv)
33) (i)
34) (ii)
35) (ii)
36) (ii)
37) (i)
38) (v)
