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Byju's Answer
Standard X
Mathematics
Properties of Cyclic Quadrilateral
in a nbsp; ...
Question
in a quadrilateral PQRS <P:<Q:<R:<S=x:y:y:x
prove that PQRS is cyclic
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Solution
Dear student
Given
a
quadrilateral
PQRS
,
∠
P
:
∠
Q
:
∠
R
:
∠
S
=
x
:
y
:
y
:
x
We
know
that
in
a
quadrilateral
sum
of
all
angles
in
360
°
So
,
x
+
y
+
y
+
x
=
360
°
2
x
+
2
y
=
360
°
x
+
y
=
180
°
Since
sum
of
opposite
angles
is
180
°
,
so
it
is
a
cyclic
quadrilateral
.
Regards
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