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1985 IMO Longlists
72
72
Part of
1985 IMO Longlists
Problems
(1)
Construct a triangle assuming OH || AB
Source:
9/14/2010
Construct a triangle
A
B
C
ABC
A
BC
given the side
A
B
AB
A
B
and the distance
O
H
OH
O
H
from the circumcenter
O
O
O
to the orthocenter
H
H
H
, assuming that
O
H
OH
O
H
and
A
B
AB
A
B
are parallel.
geometry
circumcircle
geometric transformation
reflection
geometry proposed