1975 USAMO Problems/Problem 2
Problem
Let denote four points in space and
the distance between
and
, and so on. Show that

Solution
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See also
1975 USAMO (Problems • Resources) | ||
Preceded by Problem 1 |
Followed by Problem 3 | |
1 • 2 • 3 • 4 • 5 | ||
All USAMO Problems and Solutions |