Предмет: Математика, автор: NadyaPokrasova22

помогите решить пожалуйста

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Автор ответа: 5Hoper5

p=3,14, a r=1 diametr=2 (3,14:2)-1=1,57-1=0,57 B:0,57

5Hoper5: По идеи так

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