Предмет: Математика, автор: Аноним

ТЕРМІНОВО!!!
НАПИШІТЬ РОЗВ'ЯЗАННЯ ДО ЗАДАЧ.
ДАЮ 20 БАЛІВ​

Приложения:

Ответы

Автор ответа: ForeignAgent
1

Ответ:

Пошаговое объяснение:

Cередній рівень

1. а

2.

\frac{1.2}{1.4}=\frac{8.64}{x}

3.

\frac{30}{100}=\frac{8.4}{x}

4.

R=\frac{1}{2}D=\frac{2.7}{2}=1.35 \\C=2\pi R=2*3.14*1.35 =8.5

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