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2. 2. . . .
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12
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1. 5 , , , . .
- 12 , , , . .
3. 6 8 . .
- 12 , 13 . .
5. , 8 10 .
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6. = 900, CD , AD = 18 , DB=25 . D, , .
7. 3, 450, . .
8. 8 , 600, . .
1. .1 : = , =4, DO=6, AO=5. : .
- .2. : = D, A=8, BO=12, CO=6. : D.
3. =4, =7, =6, MNK MK=8, MN=12, KN=14. MNK, =800, =600.
- =12, =18, =700, MNK, MN=6, KN=9, N=700. , MK=7,
K=600.
5. PQR : PQ=16c, QR=20, PR=28 =12, =15, =21. .
- KMN, =8, =12, =16 =10c, MN=15, NK=20.
:
46 . , 42 .
1. 56 . , 20 .
2. 840. .
3. 2540. .
4. Ζ . = 12, = 8, = 7. .
5. Ζ . = 15, = 24, = 9. .
6. .1 : , = 480. : , .
. 1
7. .2 : , = 360. : , .
. 2
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1. 6. .
2. 36, 13. , .
3. .1 .
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4. .2 .
5. 200 . .
6. 1300. .
:
1. = 900, CD , AD = 18 , DB=25 . D, , .
2. = 900, =7 , =7 . .
3. =900, A = 12 , . .
4. =900, D , D=36, D=8 . D, , .
5. =900, =5 , =5 . .
6. =900, = 15 , . .
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