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ElenaAlrman2707
@ElenaAlrman2707
July 2022
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Геометрия. помогите решить.
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yugolovin
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Воспользуемся теоремой косинусов c^2=a^2+b^2-2abcosФ=
(5√3)^2+4^2-2·5√3·4·√3/2=75+16-60=31; с=√31
Ответ: √31
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Answers & Comments
Verified answer
Воспользуемся теоремой косинусов c^2=a^2+b^2-2abcosФ=(5√3)^2+4^2-2·5√3·4·√3/2=75+16-60=31; с=√31
Ответ: √31