Предмет: Алгебра, автор: loool87

Сроооооооооооооооооооочноооооооо пжжж

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Автор ответа: golubevatatana09

2

Ответ:

90-18 = 72 градуса - угол СВА

Автор ответа: 3aukaOFF

0

угол CBA = у. ABD - у. DBC
у. CBA = 90-18
у. CBA = 72

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