Предмет: Математика, автор: Аноним

Помогите надо только 2)ОЧЕНЬ СРОЧНО ПОМОГИТИ !!!!!!!
Дам 50 баллов НАДО ТОЛЬКО 2)

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Ответы

Автор ответа: RadmirBoltabaev

0

12:3=4

4:3=1.1/3

12:1.1/3=9

Ответ: r=9см

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