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6
SMT 2022 Geometry #6
SMT 2022 Geometry #6
Source:
April 1, 2023
Problem Statement
Let the incircle of
△
A
B
C
\triangle ABC
△
A
BC
be tangent to
A
B
,
B
C
,
A
C
AB,BC,AC
A
B
,
BC
,
A
C
at points
M
,
N
,
P
M,N,P
M
,
N
,
P
, respectively. If
∡
B
A
C
=
3
0
∘
\measuredangle BAC=30^\circ
∡
B
A
C
=
3
0
∘
, find
[
B
P
C
]
[
A
B
C
]
⋅
[
B
M
C
]
[
A
B
C
]
\tfrac{[BPC]}{[ABC]}\cdot\tfrac{[BMC]}{[ABC]}
[
A
BC
]
[
BPC
]
⋅
[
A
BC
]
[
BMC
]
, where
[
A
B
C
]
[ABC]
[
A
BC
]
denotes the area of
△
A
B
C
\triangle ABC
△
A
BC
.
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