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In , and is the midpoint of . If , then the measure of…
MATHEMATICS · Single correct · CBSE · Mathematics · Triangles · Triangles
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
A
B
=
A
C
AB = AC
A
B
=
A
C
and
D
D
D
is the midpoint of
B
C
BC
B
C
. If
∠
A
B
C
=
42
∘
\angle ABC = 42^{\circ}
∠
A
B
C
=
4
2
∘
, then the measure of
∠
A
D
B
\angle ADB
∠
A
D
B
is (a)
48
∘
48^{\circ}
4
8
∘
(b)
90
∘
90^{\circ}
9
0
∘
(c)
42
∘
42^{\circ}
4
2
∘
(d)
96
∘
96^{\circ}
9
6
∘
Related theory
Quadrilaterals
Properties of Triangles
Triangle Properties
Mid-point theorem
Triangles
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