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foxsshcool
@foxsshcool
June 2023
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Срочно!!! Пожалуйста решите
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zmeura1204
Ответ:
МN=13 ед
Решение:
Теорема косинусов:
МN=√(MK²+NK²-2*MK*NK*cos∠K);
cos60°=½
MN=√(15²+7²-2*15*7*½)=
=√(225+49-105)=√169=13ед
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Oksana2456
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Answers & Comments
МN=13 ед
Решение:
Теорема косинусов:
МN=√(MK²+NK²-2*MK*NK*cos∠K);
cos60°=½
MN=√(15²+7²-2*15*7*½)=
=√(225+49-105)=√169=13ед