The correct chemical formula for a silica tetrahedron is SiO4.
There can be no formula for a tetrahedron since you have not specified what aspect the formula is supposed to calculate. Furthermore, although they are all triangular pyramids, tetrahedra can be tall, needle-like shapes or almost flat shapes.
P4 is the chemical formula of white phosphorus. It is a tetrahedron of phosphorus atoms.
Trying to figure this out too...
A tetrahedron is a solid figure with four triangular faces. As these may or may not be regular (all the same), the formula is to add the area of all four together. The formula for the area of a triangle is 1/2(base x height).
It is a mineral whose chemical formula does not contain the silica tetrahedron.
I am not a tetrahedron!
A silica tetrahedron is composed of four atoms of oxygen bound to a central atom of silicon, with the formula of SiO4.
Sounds like quartz, though 2 of those oxygens are shared in the tetrahedron. SiO2 is IUPAC formula for quartz.
A tetrahedron has 4 faces.