1-)
buradaki açı 65*
https://img29.imageshack.us/img29/7784/xy29.jpg
2-)https://img689.imageshack.us/img689/8761/e69l.jpg
3-) https://img194.imageshack.us/img194/4930/rxpa.jpg
4-)https://img560.imageshack.us/img560/985/hnrd.jpg
5-)https://img163.imageshack.us/img163/5585/ackt.jpg