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Quadrilateral is cyclic
MATHEMATICS · Single correct · CBSE · Mathematics · Circles · Circles
Problem
Quadrilateral
A
B
C
D
A B C D
A
B
C
D
is cyclic. If
∠
A
=
(
2
x
+
30
)
∘
\angle A = (2x + 30)^{\circ}
∠
A
=
(
2
x
+
30
)
∘
and
∠
C
=
(
5
x
+
10
)
∘
\angle C = (5x + 10)^{\circ}
∠
C
=
(
5
x
+
10
)
∘
, find the value of
x
x
x
. (a)
30
30
30
(b)
20
20
20
(c)
18
18
18
(d)
21
21
21
Related theory
Cyclic Quadrilaterals
Circles
Cyclic quadrilateral properties
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