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sashamaksimchuk
@sashamaksimchuk
April 2023
1
2
Report
8
Дано:
X
АВС~AA,B,C,
PAABC =110
B
подiбнiсть трикутників
x-?
у-?
Z-?
N
4
В,
5
с
СРОЧНО!!!!!!!!!30 б
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Answers & Comments
eva994458
Условие задачи не точное. Должно быть так:
Дано: ΔАВС, АВ = 6, АС = 4,
ΔMNK, NK = 12, MK = 15,
∠ВАС = ∠NMK, ∠BCA = ∠NKM.
Найти: ВС и MN.
Решение:
ΔАВС подобен ΔMNK по двум углам.
ВС : NK = AC : MK
BC : 12 = 4 : 15
BC = 12 · 4 / 15 = 3,2
MN : AB = MK : AC
MN : 6 = 15 : 4
MN = 6 · 15 / 4 = 22,5
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Answers & Comments
Дано: ΔАВС, АВ = 6, АС = 4,
ΔMNK, NK = 12, MK = 15,
∠ВАС = ∠NMK, ∠BCA = ∠NKM.
Найти: ВС и MN.
Решение:
ΔАВС подобен ΔMNK по двум углам.
ВС : NK = AC : MK
BC : 12 = 4 : 15
BC = 12 · 4 / 15 = 3,2
MN : AB = MK : AC
MN : 6 = 15 : 4
MN = 6 · 15 / 4 = 22,5