2000 AIME I Problems/Problem 12
Problem
A sphere is inscribed in the tetrahedron whose vertices are ,
,
, and
. The radius of the sphere is
, where
and
are relatively prime positive integers. Find
.
A sphere is inscribed in the tetrahedron whose vertices are ,
,
, and
. The radius of the sphere is
, where
and
are relatively prime positive integers. Find
.
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