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Byju's Answer
Standard VII
Mathematics
Angle Sum Property
In the given ...
Question
In the given figure, find the missing angle.
A
45
o
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B
65
o
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C
60
o
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D
55
o
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Solution
The correct option is
C
60
o
As we know that,
∠
A
+
∠
B
+
∠
C
=
180
o
65
o
+
∠
B
+
55
o
=
180
o
∠
B
=
180
o
−
120
o
=
60
o
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2
Similar questions
Q.
In figure if
B
A
∥
D
F
,
A
D
∥
F
G
,
∠
B
A
C
=
65
o
and
∠
A
C
B
=
55
o
, then find
∠
F
G
H
.
Q.
In the given figure,
∠
B
A
D
=
65
o
,
∠
A
B
D
=
70
o
,
∠
B
D
C
=
45
o
(i) Prove that
A
C
is a diameter of the circle.
(ii) Find
∠
A
C
B
.
Q.
In the following figure,
∠
B
A
C
=
60
o
and
∠
A
B
C
=
65
o
.
Prove that :
D
C
>
D
F
Q.
In the following figure,
∠
B
A
C
=
60
o
and
∠
A
B
C
=
65
o
.
Prove that :
C
F
>
A
F
Q.
In the given figure, I is the incentre of
Δ
A
B
C
.
B
I
when produced meets the circumcircle of
Δ
A
B
C
at
D
. Given
∠
B
A
C
=
55
o
,
∠
A
C
B
=
65
o
. Calculate (i)
∠
D
C
A
(ii)
∠
D
A
C
(iii)
∠
D
C
I
(iv)
∠
A
I
C
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