This Tutorial includes three(3) Scenarios for three (3) Use case Diagrams

Student needs to read the Scenario, identify the actors, use-cases and relations (if-any) between Use cases.
Scenario-1 shows a Use case diagram without relations between Use cases.
Scenario-2shows a Use case Diagram with relation <<extends>> between Use cases.
Scenario-3 shows a Use case Diagram with the relation <<uses>> or<<include>> between Use Cases.