Bi
Tri
There are words that Begin with the prefix tri- like: Triangle, Tripod, Tricycle, and Triceratops
Three
triple, tricycle, triathlon, triangle, trimonthly, trilogy, tricolor, triceratops, tri-state area,
Rabbi
tripod triangle trigonometry triple triphasic
Quadrant and quadruped are words that begin with quad. Triad, trial, triangle, tribe, tribunal and trick are words that begin with tri. Bias, bib, bible, bicycle, bid and bird are words that begin with bi.
Some words starting with "bi" include bicycle, biology, bit, and big.
triplet
Tri color
Nine TrillionMillion - 6 ~ 0s(Bi)llion - 9 ~ 0s(Tri)llion - 12 ~ 0s
tria 'tree-uh' is Greek for the number 3
Phosphorus can be bi-, tri-, penta- and hexavalent.
Cerium can be bi-, tri- or tetravalent.
11
2 or 3, it's either bi or tri.
The answer is bi. Or uni. Or tri. Or omni. What makes you think you can only use one prefix with it?
Three, when a word starts with "Tri" it refers to three, the same is said about words that start with "Bi" meaning two, or "Quad" meaning four etc.