1103233603

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Level: 
Project ID: 
1103233603
Source Problem: 
Accepted: 
1
Clonable: 
1
Let ABCDEFGH be a cube with an edge length of 1 placed in the rectangular coordinate system. In the cube a regular tetrahedron ACHF is highlighted (see the picture). Find the angle between its faces and round the number to the nearest minute.
7032
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45
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