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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We say tha size of each one triangule is , now hence for other size but:
Originally Posted by Nacho is this a regular tetrahedron ? i thought that a regular tetrahedron is a regular 3 sides pyramid
Originally Posted by beq!x is this a regular tetrahedron ? i thought that a regular tetrahedron is a regular 3 sides pyramid Tetrahedron - Wikipedia, the free encyclopedia
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