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International Contests
Tournament Of Towns
1988 Tournament Of Towns
(189) 2
(189) 2
Part of
1988 Tournament Of Towns
Problems
(1)
TOT 189 1988 Autumn J2 <MAC =<MCD inside square ABCD
Source:
5/20/2020
A point
M
M
M
is chosen inside the square
A
B
C
D
ABCD
A
BC
D
in such a way that
∠
M
A
C
=
∠
M
C
D
=
x
\angle MAC = \angle MCD = x
∠
M
A
C
=
∠
MC
D
=
x
. Find
∠
A
B
M
\angle ABM
∠
A
BM
.
geometry
equal angles
angles
square