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Official Ukraine Selection Cycle
Kyiv City MO
Kyiv City MO - geometry
Kyiv City MO Juniors 2003+ geometry
2019.9.2
2019.9.2
Part of
Kyiv City MO Juniors 2003+ geometry
Problems
(1)
medians AN _|_ CM, when BC=\sqrt2 AC, right triangle (2019 Kyiv City MO 9.2)
Source:
9/16/2020
In a right triangle
A
B
C
ABC
A
BC
, the lengths of the legs satisfy the condition:
B
C
=
2
A
C
BC =\sqrt2 AC
BC
=
2
ā
A
C
. Prove that the medians
A
N
AN
A
N
and
C
M
CM
CM
are perpendicular.(Hilko Danilo)
geometry
Medians
perpendicular