Which of the following bond angle order is/are correct in the following pair?

As the bonding pair of electrons is attracted towards the more electronegative substituent, the charge density on the central atom decreases. Thus, the repulsion between two BP’s becomes less. Thus, the adjacent hybrid orbitals can be near each other and so the bond angle becomes less. 

So the size of central atom is increases and bond angle is decreases the size of terminal atom is is increases with bond angle.