Difference between revisions of "1973 USAMO Problems/Problem 1"
(New page: ==Problem== Two points <math>P</math> and <math>Q</math> lie in the interior of a regular tetrahedron <math>ABCD</math>. Prove that angle <math>PAQ<60^o</math>. ==Solution== ==See also==...) |
m (→Solution) |
||
| Line 3: | Line 3: | ||
==Solution== | ==Solution== | ||
| + | {{solution}} | ||
==See also== | ==See also== | ||
Revision as of 14:22, 30 December 2008
Problem
Two points 
and 
lie in the interior of a regular tetrahedron 
. Prove that angle 
.
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
See also
| 1973 USAMO (Problems • Resources) | ||
| Preceded by First Question |
Followed by Problem 2 | |
| 1 • 2 • 3 • 4 • 5 | ||
| All USAMO Problems and Solutions | ||
