Предмет: Математика, автор: atam18

Длина детали на чертеже сделанном в масштабе 2:3,равна 12см.Найдите ее длину на чертеже, масштаб которого 1:4.​

Ответы

Автор ответа: fikort
10

Ответ:

4,5

Пошаговое объяснение:

Найдем реальный размер:

12*3/2=18

Найдем размер на втором чертеже:

18*1/4=4,5

Автор ответа: xxxeol
6

Пошаговое объяснение:

Чтобы найти натуральный размер надо ДЕЛИТЬ  на масштаб

12 см : 2/3 = 12/2*3 = 18  см - в натуре

Чтобы найти размер на чертеже - УМНОЖИТЬ НА МАСШТАБ.

18 см * (1/4) = 18/4 = 4,5 см на чертеже - ответ..

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