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14
2000 Guts #14: Cyclic quadrilateral
2000 Guts #14: Cyclic quadrilateral
Source:
October 12, 2014
trigonometry
geometry
Problem Statement
A
B
C
D
ABCD
A
BC
D
is a cyclic quadrilateral inscribed in a circle of radius
5
5
5
, with
A
B
=
6
AB=6
A
B
=
6
,
B
C
=
7
BC=7
BC
=
7
,
C
D
=
8
CD=8
C
D
=
8
. Find
A
D
AD
A
D
.
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