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Автор - zhansaialebaeva

Тең бүйірлі үшбұрыш бүйірі 6см ге қысқа периметры 21см үшбұрыштың қабырғасын табу керек

Ответ

Автор - zukovskal66

Відповідь:

a = 5sm


b = c = 6sm


P =?


P = a + b + c = 5 + 6 + 6 = 17см

Пояснення:

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