Предмет: Геометрия, автор: nikitacvetkov220

Помогите пожалуйста
Доведіть що зображені на малюнку трикутники є подібними

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Ответы

Автор ответа: zmeura1204

Ответ:
∆АВС~∆DPC, по углам.
Доказательство:
∠PDA=∠BAC, по условию
∠С- общий угол треугольников ∆АВС и ∆DPC.
∆ABC~∆DPC, по первому признаку подобия, по двум углам.
Что и требовалось доказать.

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