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лиза22110
лиза22110
20.08.2020 10:19 •  Математика

Начерти незмкнутую ломаную со звеньями длиной 5см,3мм,2см8мм8смзамкнииломаную так,чтобы получился четырехугольник .найди периметр четырехугольника

👇
Ответ:
Переведём всё в мм 50мм+3 мм+28 мм+80мм= 16 см 1 мм
4,7(44 оценок)
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Ответ:
ROMMIT2
ROMMIT2
20.08.2020

Пошаговое объяснение:

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4,4(68 оценок)
Ответ:
dwinchester15
dwinchester15
20.08.2020

                     S                    V                    t                

         |           ?                    35 км / ч .      4 ч.

         ||          ?                    31 км / ч .       2 ч .

1) . S^1 = V * t .

    S^1 = 35 * 4 = 140 ( км ) .

2) . S^2 = V * t .

     S^2 = 31 * 2 = 62 ( км ) .

3) . Cр = 140 + 62 =202 .

    Ср = 202 : 2 = 101 ( км/ч ) .

ответ : Ср = 101 км/ ч .

Надеюсь правильно :

Всем удачи , счастья и добра :

Если не сложно поставьте идеальный ответ или лучший

Заранее ОГРОМНОЕ

Если есть вопросы пишите всем отвечу :

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