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How to pronounce "tetrahedron"

Matches found: 2 (4 ms)
1.
Four atoms of hydrogen, the four points of the tetrahedron,

ted-talks_1135_ArvindGupta_2010P-320k

Duration: 3s   Details
2.
You make a tetrahedron like this.

ted-talks_1135_ArvindGupta_2010P-320k

Duration: 4s   Details