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Problems
Mathematics
Mathematics
Problem
Quadrilateral
A
B
C
D
ABCD
A
B
C
D
satisfies
∠
A
C
B
=
∠
A
D
B
\angle ACB = \angle ADB
∠
A
C
B
=
∠
A
D
B
. If
∠
A
B
C
=
(
3
x
−
10
)
∘
\angle ABC = (3x - 10)^\circ
∠
A
B
C
=
(
3
x
−
10
)
∘
and
∠
A
D
C
=
(
2
x
+
20
)
∘
\angle ADC = (2x + 20)^\circ
∠
A
D
C
=
(
2
x
+
20
)
∘
, the value of
x
x
x
is a)
32
∘
32^{\circ}
3
2
∘
b)
38
∘
38^{\circ}
3
8
∘
c)
34
∘
34^{\circ}
3
4
∘
d)
30
∘
30^{\circ}
3
0
∘
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