In a tree data structure, leaves (also called leaf nodes) are defined as nodes that have no children, meaning no further questions or branches come from them. They are terminal nodes where the decision or path ends. Therefore, the number of leaves in a tree is the count of nodes that do not have any child nodes. If a specific tree is given, one would count how many nodes have no children to find the number of leaves. Generally, leaves are also called external or terminal nodes in the tree terminology.
If the question refers to a particular tree structure, the count of leaves is simply the number of such terminal nodes where no further questions or branches exist.
To provide an exact number, the structure or image of the particular tree in question would need to be analyzed. However, the formula to identify how many leaves a tree has is by counting all nodes with zero children, as leaves represent end points in the tree path.
