????? ??? ??? ?????.

??????:

�

4 ??????? ?? ??? ??? (???? ?? ?????) ????? ?- 4 ?"? ?? ???

???? ?????? ??????

?????:

� ??? ??? ??? ?????

� ??? ??? ????

1 ??? ???? ?????

2 ???? ???? ???'?? ?????

2 ????? ????? ????

???, ???? ???? ???? ???

???? ?????:

1. ?????? ??? ?? ????????� (?????? ???? ?? ??? ????? ?? ????) ???????? ????? ?????? ?- 180 ????? ????6-5 ????.

2. ??????? ?????? ?? ?????: ???? ?? ????, ??? ????? ?????? ????, ?????? ?????? ??????? ?? ???????? ???????? ??????. ??? ?? ???? ????? ????.

3. ??????? ?? ?????, ?????? ?????, ???? ??????, ??????? ??????? ??? ??? ????.

4.� ??????? ?? ???????? ??????, ?????? ?? ????? ????, ?????? ????? ?????? ???????.