P-P Situation 1: Problem 2 (Generalization). 

P-P Situation 1:
[i][justify]Create mathematical problems in a dynamic GeoGebra environment, which include the geometric figure arbelos.[/justify][/i]
Problem 2 (Generalization). 
[i][justify]Calculate the length on one of the arcs in arbelos, if lengths of the other two arcs are known.[/justify][/i]
Generalized GeoGebra construction with animation

Information: P-P Situation 1: Problem 2 (Generalization).