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Poland - Second Round
1963 Poland - Second Round
2
2
Part of
1963 Poland - Second Round
Problems
(1)
parallelogram construction
Source: Polish MO Second Round 1963 p2
8/31/2024
In the plane there is a quadrilateral
A
B
C
D
ABCD
A
BC
D
and a point
M
M
M
. Construct a parallelogram with center
M
M
M
and its vertices lying on the lines
A
B
AB
A
B
,
B
C
BC
BC
,
C
D
CD
C
D
,
D
A
DA
D
A
.
geometry
construction
parallelogram