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2024 CMIMC
2024 CMIMC Geometry
8
8
Part of
2024 CMIMC Geometry
Problems
(1)
2024 Geo Problem 8
Source:
4/15/2024
Let
ω
\omega
ω
and
Ω
\Omega
Ω
be circles of radius
1
1
1
and
R
>
1
R>1
R
>
1
respectively that are internally tangent at a point
P
P
P
. Two tangent lines to
ω
\omega
ω
are drawn such that they meet
Ω
\Omega
Ω
at only three points
A
A
A
,
B
B
B
, and
C
C
C
, none of which are equal to
P
P
P
. If triangle
A
B
C
ABC
A
BC
has side lengths in a ratio of
3
:
4
:
5
3:4:5
3
:
4
:
5
, find the sum of all possible values of
R
R
R
.Proposed by Connor Gordon
geometry