The point is the midpoint of the altitude of the regular Tetrahedron. is linked with of the base of Tetrahedron with segments and .

Find the angles between these segments.

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- Apr 25th 2009, 10:15 AMbeq!xFind the angle in a Tetrahedron
The point is the midpoint of the altitude of the regular Tetrahedron. is linked with of the base of Tetrahedron with segments and .

Find the angles between these segments. - Apr 25th 2009, 06:04 PMNacho
Attachment 11097

We say tha size of each one triangule is , now hence

for other size

but: - Apr 26th 2009, 12:50 AMbeq!x
- Apr 26th 2009, 08:35 AMNacho