EduSahara™ Assignment
Name : Quadrilateral Angle Properties
Chapter : Understanding Quadrilaterals
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
The measures of three angles of a quadrilateral are
61.26°
,
143.58°
and
61.26°
. Find the fourth angle
(i)
103.9°
(ii)
123.9°
(iii)
108.9°
(iv)
98.9°
(v)
93.9°
Question
2
2.
Sum of the interior angles in a quadrilateral is
(i)
360°
(ii)
370°
(iii)
375°
(iv)
365°
(v)
390°
Question
3
3.
Find the missing angle in the given quadrilateral
(i)
62.06°
(ii)
57.06°
(iii)
72.06°
(iv)
87.06°
(v)
67.06°
Question
4
4.
Find the missing angle in the given trapezium
(i)
117.46°
(ii)
102.46°
(iii)
107.46°
(iv)
132.46°
(v)
112.46°
Question
5
5.
Find the missing angle in the given parallelogram
(i)
56.09°
(ii)
81.09°
(iii)
51.09°
(iv)
61.09°
(v)
66.09°
Question
6
6.
Find the missing angle in the given rhombus
(i)
82.43°
(ii)
107.43°
(iii)
77.43°
(iv)
87.43°
(v)
92.43°
Question
7
7.
In parallelogram ABCD, if ∠B = 145.78°, then find the value of ∠C
(i)
32.22°
(ii)
35.22°
(iii)
36.22°
(iv)
33.22°
(v)
34.22°
Question
8
8.
If the opposite angles of a parallelogram are supplementary, the measure of each of its angles is
(i)
88°
(ii)
92°
(iii)
89°
(iv)
90°
(v)
91°
Question
9
9.
If ABCD is an isosceles trapezium, ∠D =
(i)
90°
(ii)
∠C
(iii)
∠B
(iv)
∠A
Question
10
10.
OPQR is a rhombus in which ∠O = 120° .
PR
is the diagonal. Then △OPQ is
(i)
an equilateral triangle
(ii)
an isosceles triangle
(iii)
a scalene triangle
(iv)
None of these
(v)
an obtuse angled triangle
Question
11
11.
EFGH is a rhombus in which ∠E = 99° .
FH
is the diagonal. Then △EFG is
(i)
None of these
(ii)
an obtuse angled triangle
(iii)
a scalene triangle
(iv)
an equilateral triangle
(v)
an isosceles triangle
Question
12
12.
The angles of a quadrilateral CDEF are in the ratio 4 : 3 : 5 : 8. Find the measure of each angle of the quadrilateral.
(i)
C
=
71°
,
D
=
52°
,
E
=
91°
,
F
=
146°
(ii)
C
=
70°
,
D
=
56°
,
E
=
89°
,
F
=
145°
(iii)
C
=
73°
,
D
=
53°
,
E
=
92°
,
F
=
142°
(iv)
C
=
72°
,
D
=
54°
,
E
=
90°
,
F
=
144°
(v)
C
=
74°
,
D
=
53°
,
E
=
88°
,
F
=
145°
Question
13
13.
Two adjacent angles of a parallelogram HIJK are in the ratio 2 : 18. Find the measure of each of its angles.
(i)
H
=
17°
,
I
=
160°
,
J
=
19°
,
K
=
164°
(ii)
H
=
20°
,
I
=
161°
,
J
=
16°
,
K
=
163°
(iii)
H
=
19°
,
I
=
161°
,
J
=
20°
,
K
=
160°
(iv)
H
=
16°
,
I
=
164°
,
J
=
17°
,
K
=
163°
(v)
H
=
18°
,
I
=
162°
,
J
=
18°
,
K
=
162°
Question
14
14.
In the adjoining figure,
JKLM
is a parallelogram in which
∠MJL = 21.63°
,
∠LJK = 17.1°
,
∠MNL = 107.89°
. Calculate
∠JKM
(i)
55.01°
(ii)
56.01°
(iii)
54.01°
(iv)
53.01°
(v)
57.01°
Question
15
15.
In the adjoining figure,
FGHI
is a parallelogram in which
∠IFH = 23.64°
,
∠HFG = 20.86°
,
∠IJH = 99.65°
. Calculate
∠HIG
(i)
60.49°
(ii)
57.49°
(iii)
59.49°
(iv)
61.49°
(v)
58.49°
Question
16
16.
In the adjoining figure,
JKLM
is a parallelogram in which
∠MJL = 27.59°
,
∠LJK = 17.04°
,
∠MNL = 122.25°
. Calculate
∠KLJ
(i)
25.59°
(ii)
26.59°
(iii)
27.59°
(iv)
29.59°
(v)
28.59°
Question
17
17.
In the adjoining figure,
FGHI
is a parallelogram in which
∠IFH = 45.83°
,
∠HFG = 32.67°
,
∠IJH = 106.39°
. Calculate
∠IGH
(i)
58.56°
(ii)
62.56°
(iii)
59.56°
(iv)
60.56°
(v)
61.56°
Question
18
18.
In the adjoining figure,
OPQR
is a rectangle.
If
∠QOP = 53.13°
, find
∠PQO
(i)
37.87°
(ii)
38.87°
(iii)
34.87°
(iv)
35.87°
(v)
36.87°
Question
19
19.
Three angles of quadrilateral measure 102.03°, 64.78° and 120.57° respectively. Find the measure of the fourth angle
(i)
72.62°
(ii)
74.62°
(iii)
71.62°
(iv)
73.62°
(v)
70.62°
Question
20
20.
Three angles of a quadrilateral are equal and the fourth angle measure 101.53°. What is the measure of each of the equal angles?
(i)
86.16°
(ii)
88.16°
(iii)
87.16°
(iv)
84.16°
(v)
85.16°
Question
21
21.
Two angles of a quadrilateral are of measure 70.53° and 137.73° respectively and the other two angles are equal. Find the measure of each of the equal angles.
(i)
74.87°
(ii)
76.87°
(iii)
77.87°
(iv)
75.87°
(v)
73.87°
Question
22
22.
A quadrilateral has three acute angles, each measuring 49°. What is the measure of its fourth angle?
(i)
213.00°
(ii)
212.00°
(iii)
214.00°
(iv)
211.00°
(v)
215.00°
Question
23
23.
One angle of a parallelogram measures
B
=
46.95°
.
Find the measure of each of its remaining angles.
(i)
C
=
135.05°
,
D
=
48.95°
,
E
=
135.05°
(ii)
C
=
132.05°
,
D
=
45.95°
,
E
=
132.05°
(iii)
C
=
131.05°
,
D
=
44.95°
,
E
=
131.05°
(iv)
C
=
133.05°
,
D
=
46.95°
,
E
=
133.05°
(v)
C
=
134.05°
,
D
=
47.95°
,
E
=
134.05°
Question
24
24.
Two adjacent angles of a parallelogram are in the ratio
6 : 6
.
Find the measure of each of its angles.
(i)
A
=
88°
,
B
=
92°
,
C
=
89°
,
D
=
91°
(ii)
A
=
90°
,
B
=
90°
,
C
=
90°
,
D
=
90°
(iii)
A
=
89°
,
B
=
88°
,
C
=
91°
,
D
=
92°
(iv)
A
=
91°
,
B
=
89°
,
C
=
92°
,
D
=
88°
(v)
A
=
92°
,
B
=
89°
,
C
=
88°
,
D
=
91°
Question
25
25.
In the figure given below,
MNOP
is a rectangle.
Find the values of x and y
(i)
x
=
31.69°
,
y
=
65.38°
(ii)
x
=
34.69°
,
y
=
68.38°
(iii)
x
=
33.69°
,
y
=
67.38°
(iv)
x
=
35.69°
,
y
=
69.38°
(v)
x
=
32.69°
,
y
=
66.38°
Question
26
26.
In the figure given below,
EFGH
is a rectangle.
Find the values of x and y
(i)
x
=
40.18°
,
y
=
47.82°
(ii)
x
=
42.18°
,
y
=
49.82°
(iii)
x
=
39.18°
,
y
=
46.82°
(iv)
x
=
43.18°
,
y
=
50.82°
(v)
x
=
41.18°
,
y
=
48.82°
Question
27
27.
In the figure given below,
ABCD
is a rhombus.
Find the values of x and y
(i)
x
=
40.23°
,
y
=
40.23°
(ii)
x
=
39.23°
,
y
=
39.23°
(iii)
x
=
41.23°
,
y
=
41.23°
(iv)
x
=
37.23°
,
y
=
37.23°
(v)
x
=
38.23°
,
y
=
38.23°
Question
28
28.
In the figure given below,
BCDE
is a rhombus.
Find the values of x and y
(i)
x
=
59.97°
,
y
=
59.97°
(ii)
x
=
56.97°
,
y
=
56.97°
(iii)
x
=
55.97°
,
y
=
55.97°
(iv)
x
=
58.97°
,
y
=
58.97°
(v)
x
=
57.97°
,
y
=
57.97°
Question
29
29.
In the figure given below,
CDEF
is a rhombus.
Find the values of x and y
(i)
x
=
25.84°
,
y
=
68.16°
(ii)
x
=
21.84°
,
y
=
64.16°
(iii)
x
=
22.84°
,
y
=
65.16°
(iv)
x
=
23.84°
,
y
=
66.16°
(v)
x
=
24.84°
,
y
=
67.16°
Question
30
30.
One of the diagonals of a rhombus is equal to one of its sides. Find the angles of the rhombus
(i)
D
=
61°
,
E
=
119°
,
F
=
62°
,
G
=
118°
(ii)
D
=
62°
,
E
=
119°
,
F
=
58°
,
G
=
121°
(iii)
D
=
58°
,
E
=
122°
,
F
=
59°
,
G
=
121°
(iv)
D
=
60°
,
E
=
120°
,
F
=
60°
,
G
=
120°
(v)
D
=
59°
,
E
=
118°
,
F
=
61°
,
G
=
122°
Question
31
31.
In the adjoining figure,
IJKL
is a trapezium in which
IJ
∥
KL
.
If
x = 57.89°
and
y = 70.56°
,
find the measures of
∠K
and
∠L
.
(i)
K
=
109.44°
,
L
=
122.11°
(ii)
K
=
111.44°
,
L
=
124.11°
(iii)
K
=
110.44°
,
L
=
123.11°
(iv)
K
=
107.44°
,
L
=
120.11°
(v)
K
=
108.44°
,
L
=
121.11°
Question
32
32.
In the adjoining figure,
ABCD
is a kite in which
AB
=
DA
,
BC
=
CD
and the diagonals
BD
and
AC
intersect at
O
.
If ∠OCD = 35.93° and ∠ABO = 56.66°, find the measure of each of the angles marked a,b,c,d and e.
(i)
a = 54.07° , b = 34.34° , c = 55.66° , d = 54.07° , e = 35.93°
(ii)
a = 54.07° , b = 34.34° , c = 55.66° , d = 56.07° , e = 35.93°
(iii)
a = 54.07° , b = 34.34° , c = 55.66° , d = 56.07° , e = 33.93°
(iv)
a = 54.07° , b = 33.34° , c = 56.66° , d = 54.07° , e = 35.93°
(v)
a = 54.07° , b = 34.34° , c = 56.66° , d = 54.07° , e = 35.93°
Question
33
33.
In the adjoining figure, side HI of parallelogram HIJK has been produced to L. If ∠KHL = 123.82° , find the measure of each angle of the parallelogram.
(i)
H
=
58.18°
,
I
=
122.82°
,
J
=
54.18°
,
K
=
124.82°
(ii)
H
=
54.18°
,
I
=
125.82°
,
J
=
55.18°
,
K
=
124.82°
(iii)
H
=
55.18°
,
I
=
121.82°
,
J
=
57.18°
,
K
=
125.82°
(iv)
H
=
56.18°
,
I
=
123.82°
,
J
=
56.18°
,
K
=
123.82°
(v)
H
=
57.18°
,
I
=
122.82°
,
J
=
58.18°
,
K
=
121.82°
Question
34
34.
In the adjoining figure,
NOPQ
is a parallelogram and
RS
is such that
RS
∥
NP
If
∠NQR = 32.55°
and
∠PQS = 22.08°
,
find the measure of
∠NOP
.
(i)
125.37°
(ii)
126.37°
(iii)
127.37°
(iv)
123.37°
(v)
124.37°
Question
35
35.
In the adjoining figure, HIJK is a square. A line segment KM cuts the side IJ at M and the diagonal HJ at L such that ∠KLJ = 95.71° and ∠LMJ = x°. Find the value of x .
(i)
50.71°
(ii)
52.71°
(iii)
49.71°
(iv)
48.71°
(v)
51.71°
Question
36
36.
In the adjoining figure, GHIJ is a rhombus and △KJI is an equilateral triangle. K and H are on opposite sides of IJ. If ∠JGH = 69.63°, find the values of x and y .
(i)
x
=
30°
,
y
=
25.19°
(ii)
x
=
31°
,
y
=
26.19°
(iii)
x
=
29°
,
y
=
24.19°
(iv)
x
=
28°
,
y
=
23.19°
(v)
x
=
32°
,
y
=
27.19°
Question
37
37.
In the adjoining figure, equilateral △ONP surmounts square LMNO. If NPM = x°, find the value of x.
(i)
17°
(ii)
14°
(iii)
16°
(iv)
13°
(v)
15°
Question
38
38.
In the adjoining figure,
ABCD
is a rhombus whose diagonals intersect at
O
.
If
∠OAB
:
∠ABO
=
1 : 2
,
find the angles of
△OAB
.
(i)
O
=
90°
,
A
=
28°
,
B
=
62°
(ii)
O
=
92°
,
A
=
30°
,
B
=
58°
(iii)
O
=
88°
,
A
=
30°
,
B
=
62°
(iv)
O
=
88°
,
A
=
32°
,
B
=
60°
(v)
O
=
90°
,
A
=
30°
,
B
=
60°
Question
39
39.
In the given figure,
GHIJ
is a rectangle whose diagonals intersect at
K
.
Diagonal
GI
is produced to
T
and
∠HGT =
122.01°
. Find the angles of
△KHI
.
(i)
K
=
115.98°
,
H
=
32.01°
,
I
=
32.01°
(ii)
K
=
113.98°
,
H
=
34.01°
,
I
=
32.01°
(iii)
K
=
115.98°
,
H
=
30.01°
,
I
=
34.01°
(iv)
K
=
117.98°
,
H
=
32.01°
,
I
=
30.01°
(v)
K
=
113.98°
,
H
=
32.01°
,
I
=
34.01°
Question
40
40.
In the given figure,
EFGH
is a kite whose diagonals intersect at
I
.
If
∠FGH = 45.24°
and
∠GHE = 131.92°
, calculate
∠IEF
and
∠GIF
.
(i)
x
=
26.46°
,
y
=
91°
(ii)
x
=
27.46°
,
y
=
92°
(iii)
x
=
25.46°
,
y
=
90°
(iv)
x
=
24.46°
,
y
=
89°
(v)
x
=
23.46°
,
y
=
88°
Question
41
41.
△KJG
is an equilateral triangle in a square
GHIJ
.
If
GI
and
KJ
intersect at
L
,
then find the value of x.
(i)
73°
(ii)
76°
(iii)
75°
(iv)
77°
(v)
74°
Question
42
42.
In the adjoining figure,
L
is a point in the interior of
∠NJO
.
If
LK
⟂
JN
and
LM
⟂
JO
and
∠NJO = 44°
,
find the measure of x .
(i)
222°
(ii)
224°
(iii)
223°
(iv)
226°
(v)
225°
Assignment Key
1) (v)
2) (i)
3) (ii)
4) (ii)
5) (iii)
6) (iii)
7) (v)
8) (iv)
9) (ii)
10) (i)
11) (v)
12) (iv)
13) (v)
14) (i)
15) (iii)
16) (iii)
17) (iv)
18) (v)
19) (i)
20) (i)
21) (iv)
22) (i)
23) (iv)
24) (ii)
25) (iii)
26) (v)
27) (ii)
28) (v)
29) (iv)
30) (iv)
31) (i)
32) (iv)
33) (iv)
34) (i)
35) (i)
36) (i)
37) (v)
38) (v)
39) (i)
40) (iii)
41) (iii)
42) (ii)