i)Dendritic
-The river has many tributaries that join the main river at acute angles
-The river and its tributaries form a pattern of a tree and
its branches.
ii)Trellis
-The main river has tributaries/streams that flow parallel to each other.
-The tributaries join the main river at right angles.
iii)Centripetal.
-Many rivers flow into a central basin from all directions.