# How can I relate molecular geometry with the type of hybridisation?

$s p$, linear; $s {p}^{2}$ trigonal planar; $s {p}^{3}$ tetrahedral.
Please note that hybridization does not automatically determine molecular geometry. Water is a bent molecule, however, the 2 bonding, and 2 non-bonding orbitals about the oxygen atom are described as $s {p}^{3}$ hybrid orbitals. As you know, methane, $C {H}_{4}$, is considered $s {p}^{3}$ hybridized, and the $4$ $C - H$ bonds are arranged in a tetrahedron about the central carbon.