1. .
2. , .
II. .
I
1. .
2. 65. .
3. = 110; .
.
II
1. , 30.
2. = 90; = 60, =
= 15 . .
3. 60, 42 . .
III
1. .
2. 1 1 1 = 1 = 90; = 1 1, = 1 1. 1 1 1 1 1, = 34; = 54.
3. , = . , . , = .
IV
1. .
2. 1 1 1 1, = 1, = 1 1. 1 1 1 1 1 1 1, = 17 , = 12 .
3. 1 1 1, = 1 = 90, = 1; 1 1 . , = 1 1 1.
III. .
1. 299 .
= , . , = , 1 = = , 2 = 2 ( Q), 4 = = 2 = 2 ; 3 = 180 ( 2 + 4) = 180 4 ; 5 = 180 ( 1 + 3) = 3 ; 6 = = 5 = 3 . , 7 = 6, = = = , 7 = 3 = = . |
8 = , + 8 + 7 = 2 + 7 = 180, 180 + = 180.
, = 20. , = 20.
: 20.
2. 311 .
, , .
, , , D = . , D ( ) ( 1 = 2), D = .
, , , . MN MP ONM . ( , MN = MP, ), NOM = POM, . , , , .
|
|
IV. .
: 1533; 266, 297; .
41
.
: , , .