Предмет: Геометрия, автор: vovager2018

бісектриса трикутника ділить сторону на відрізки . більше з яких 9см.дві інших сторони 14 і 21см. знайти площу трикутника.
хелп

Ответы

Автор ответа: egorisuk88

1

Ответ:

все разом п'ятдесятшість сантиметрів

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