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Автор - elsigizmund

помогите умоляю номер 629,631

Ответ

Автор - Y4enI4ek
Номер|629
Пусть ширина - х см
18*15*х=3240
15*х=180
х=180:15
х=12
Номер|631
960:192=5(м²)-высота.

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