Предмет: Геометрия, автор: CKuzmina

Дан выпуклый девятиугольник с равными углами. Найдите эти углы

Ответы

Автор ответа: мариника

0

сумма углов 9-тиугольника

180*(9-2)=1260 град.

каждый угол 9-ти угольника равен

1260/9=140 град.

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