MathDB
Problems
Contests
National and Regional Contests
Belgium Contests
Flanders Math Olympiad
1994 Flanders Math Olympiad
3
3
Part of
1994 Flanders Math Olympiad
Problems
(1)
tetrahedron volume
Source: flanders '94
9/28/2005
Two regular tetrahedrons
A
A
A
and
B
B
B
are made with the 8 vertices of a unit cube. (this way is unique) What's the volume of
A
∪
B
A\cup B
A
∪
B
?
geometry
3D geometry
tetrahedron
octahedron