This website contains problems from math contests. Problems and corresponding tags were obtained from the Art of Problem Solving website.

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Found problems: 2

1981 All Soviet Union Mathematical Olympiad, 326
The segments $[AD], [BE]$ and $[CF]$ are the side edges of the right triangle prism. (the equilateral triangle is a base) Find all the points in its base $ABC$, situated on the equal distances from the $(AE), (BF)$ and $(CD)$ lines.
prism locus in space geometry 3d geometry locus solid geometry

1935 Moscow Mathematical Olympiad, 014
Find the locus of points on the surface of a cube that serve as the vertex of the smallest angle that subtends the diagonal.
locus in space cube geometry locus