,,,
, , . . 3 . -20 +40, 1 80%. .
: 3. (4×10×300), 15 .(7 .) ,, , (20×20), , .
1 | 7 40, 30˚. | , , . | |
2 | 50 , . | , , . | |
3 | 30˚ , . | , , , . | |
4 | , 7 . | , , , . | |
5 | , 2 6.5 . | , , . | |
: 3 . 350 ., 15 . 100 ., 20×20 30 .
: 350+100+30=480 .
Copyright (c) 2024 Stud-Baza.ru , , , .