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Krates752
@Krates752
July 2022
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В треугольнике ABC , AB=8 см,B C=6 см и <B=60° . Найти длину медианы AD .
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yugolovin
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По теореме косинусов AD^2=AB^2+BD^2-2AB·BD·cos 60°=64+9-24=49
Ответ: 7
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Verified answer
По теореме косинусов AD^2=AB^2+BD^2-2AB·BD·cos 60°=64+9-24=49Ответ: 7