Water molecule is not linear although it is of the type AB2.Please explain.Chemistry

A water molecule is not linear because of the electron
structure of the oxygen atoms in the water molecules.  Oxygen has 6 valence electrons in
the second energy level. Its configuration is 1s2 2s2 2p4.  Because of this
configuration oxygen has two electron pairs and two single valence electrons.  When
oxygen combines with hydrogen to form water each of the single electron pairs combines
with an electron from hydrogen to form a single bond. However, the electron pairs take
up a relatively large amount of space around the oxygen atom and because of the natural
repulsion between the electron pairs and the electrons in the O-H bonds, these bonds
bend to form an angle of about 107 degrees rather than being linear as
expected.