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Standard VIII
Mathematics
Question
In the above figure
Δ
ABD
≅
Δ
ACD,If
∠
BDC =
110
0
and
∠
DAC =
30
0
then the measure of angle DBA is:
70
0
30
0
40
0
25
0
A
70
0
B
30
0
C
40
0
D
25
0
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Solution
Verified by Toppr
Δ
ABD
≅
Δ
ACD,
∠
BDC =
110
0
and
∠
DAC =
30
0
∴
∠
D
A
B
=
30
o
∵
Δ
ABD
≅
Δ
ACD
∴
∠
B
D
A
=
∠
C
D
A
and
∠
B
D
A
+
∠
C
D
A
=
250
o
⟹
∠
B
D
A
=
∠
C
D
A
=
125
o
We know that
∠
D
A
B
+
∠
D
B
A
+
∠
B
D
A
=
180
o
∴
30
+
∠
D
B
A
+
125
=
180
o
⟹
∠
D
B
A
=
25
o
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Similar Questions
Q1
In the above figure
Δ
ABD
≅
Δ
ACD,If
∠
BDC =
110
0
and
∠
DAC =
30
0
then the measure of angle DBA is:
View Solution
Q2
In the given figure,
Δ
A
B
D
≅
Δ
A
C
D
. If
∠
B
D
C
=
110
∘
and
∠
D
A
C
=
30
∘
, then the measure of
∠
D
B
A
is :
View Solution
Q3
In the following figure,
Δ
A
B
D
≅
Δ
A
C
D
. If
∠
B
D
C
=
110
∘
and
∠
D
A
C
=
30
∘
, then the measure of angle
∠
D
B
A
is.
View Solution
Q4
In the given figure, AD is bisector of
∠
A and AB
=
AC. Then
Δ
ACD,
Δ
ABD are congruent by which criterion?
View Solution
Q5
In figure,
∠
ACD is an exterior angle of
Δ
ABC.
∠
B
=
40
o
,
∠
A
=
70
o
. Find the measure of
∠
ACD.
View Solution