Answer;
Trigonal pyramidal.
The molecular geometry is about each interior nitrogen atom of n2h4 is Trigonal pyramidal.
Explanation.;
-The geometry of a molecule is determined by how the terminal atoms and electron groups are arranged around the central atom. The electron groups on the terminal atoms do not affect this arrangement.
In N2H4 there are three bonds and one lone pair on the central atom (N) in the molecule, giving us a trigonal pyramidal.