Предмет: Геометрия, автор: igorka0401

точка а лежит между т В и С ВС равен 6,4 см а АС равен 2,8 см.точка К середина АВ. вычислить длину отрезка ВК

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Автор ответа: maksim6768

$BK= frac{BC-AC}{2} = frac{6.4-2.8}{2}= frac{3.6}{2} =1.8$

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