A réaliser [exercice 3](https://github.com/PBYetml/POBJ_SLO2_23_24/tree/main/Exercices/Ex3_CPP_ClassFigGeo) - [ ] => [DSY](https://github.com/Z1nghy) - [ ] => [ABR](https://github.com/AlanBadertscher) - [ ] => [JJE](https://github.com/SwissMaverick) - [ ] => [KSA](https://github.com/Isand159) - [ ] => [LFO](https://github.com/VolutedPenny235) - [ ] => [KGR](https://github.com/Kazanaris) - [ ] => [BSH](https://github.com/Hayatache) - [ ] => [LCX](https://github.com/REXI38) - [ ] => [TMK](https://github.com/ThomasMlynek)
