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Byju's Answer
Standard XII
Mathematics
Condition for Two Lines to Be Parallel
If A B II D...
Question
If
A
B
I
I
D
E
,
∠
B
A
C
=
35
∘
and
∠
C
D
E
=
53
∘
,
find
∠
D
C
E
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Solution
As
A
B
|
|
D
E
∠
B
A
E
=
∠
A
E
D
=
∠
C
E
D
=
35
∘
(Alternate interior angles)
∠
C
D
E
=
53
∘
(Given)
∠
C
D
E
+
∠
D
E
C
+
∠
E
C
D
=
180
∘
53
∘
+
∠
C
E
D
+
∠
E
C
D
=
180
∘
53
∘
+
35
∘
+
∠
D
C
E
=
180
∘
∠
D
C
E
=
180
∘
−
53
∘
−
35
∘
∠
D
C
E
=
92
∘
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Similar questions
Q.
In fig 2.57, if AB || DE
∠
BAC = 35
°
and
∠
CDE = 53
°
, find
∠
DCE.