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Balkan MO
2001 Balkan MO
2
2
Part of
2001 Balkan MO
Problems
(1)
A convex pentagon has rational sides and equal angles
Source: Balkan MO 2001, problem 2
4/24/2006
A convex pentagon
A
B
C
D
E
ABCDE
A
BC
D
E
has rational sides and equal angles. Show that it is regular.
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