Предмет: Геометрия, автор: Konami5640

знайти площу за малюнком​

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Ответы

Автор ответа: ruslanshimchuk
0

Ответ:

S=√2+1

Объяснение:

<BCD =180-135=45

<DBC=180-90-45=45

Трикутник СDB рівнобедрений, DC=DB=√2

за т Піфагора ВС=2

CA=BC=2

DA=2+√2

S=√2*(2+√2)/2=√2+1

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