Does VSEPR theory talks about the shape of molecule ? If yes then why, if no then why not.

Valence shell electron pair repulsion theory gives detail about the shape of the molecule and how in the presence of lone pair of electron the bond angle get deviated from their original angle. 
For ex., 
H2O, the oxygen atom of water undergoes sp3 hybridisation and it has two lone pair of electron. Because of sp3 hybridisation the shape is expected as tetrahedral with a bond angle of 109028' but the lone pair of electron on oxygen makes the molecule to get deviated from the original shape to angular shape with bond angle of 104.5o.  This is due to lone pair - lone pair repulsion. 

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