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Chisinau City MO
1975 Chisinau City MO
94
94
Part of
1975 Chisinau City MO
Problems
(1)
Chisinau MO p94 1975 R1 IX locus of vertex of equilateral
Source:
3/16/2021
A straight line
ℓ
\ell
ℓ
and a point
A
A
A
outside of it are given on the plane. Find the locus of the vertices
C
C
C
of the equilateral triangle
A
B
C
ABC
A
BC
, the vertex
B
B
B
of which lies on the straight line
ℓ
\ell
ℓ
.
geometry
Locus