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Standard VIII
Mathematics
Question
In the given figure, the points A, B, C, D are concyclic, when
x
=
80
o
, if
z
=
y
−
20
then
z
=
?
100
o
80
o
40
o
140
o
A
80
o
B
40
o
C
100
o
D
140
o
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Solution
Verified by Toppr
If Quadrilateral ABCD is concyclic
Then,
Sum of opposites angles is
180
∴
x
+
y
=
180
⇒
y
=
180
−
80
⇒
y
=
100
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Similar Questions
Q1
In the given figure, the points A, B, C, D are concyclic, when
x
=
80
o
, if
z
=
y
−
20
then
z
=
?
View Solution
Q2
In the given figure, the points A, B, C, D are concyclic, when
x=70,y = ?
View Solution
Q3
In a parallelogram two angles given are
80
o
&
100
o
. They are ................angles.
View Solution
Q4
Which of the following is the correct match with respect to the given question ?
'ABCD' is a rhombus such that
∠
A
C
B
=
40
o
then
∠
A
D
B
=
____.
70
o
As
∠
A
D
B
=
1
/
2
(
180
o
−
40
o
)
45
o
∠
C
+
∠
D
=
90
o
50
o
∠
B
C
D
=
80
o
⇒
∠
A
D
C
=
100
o
∴
∠
A
D
B
=
(
1
/
2
)
x
100
o
60
0
All sides are equal
View Solution
Q5
In
Δ
A
B
C
,
i
f
∠
A
=
40
o
and
∠
B
=
80
o
,then find smallest side of triangle.
View Solution