Предмет: Математика, автор: sidorenkovlada502

З вершини кута CDE ,проведено промінь DB i DA так, що кут ADC=165⁰, кут BDE=98⁰.Обчисліть градусну міру кута ADB

Ответы

Автор ответа: Blartexnick2000
0

Для обчислення градусної міри кута ADB використаємо властивість суми кутів у трикутнику.

Знаємо, що кут ADC = 165° і кут BDE = 98°.

У трикутнику ADB сума всіх кутів повинна дорівнювати 180°. Також маємо кут ADC, який складає 165°. Отже, можемо знайти градусну міру кута ADB:

ADB = 180° - ADC - BDE

ADB = 180° - 165° - 98°

ADB = 180° - 263°

ADB = -83°

Отже, градусна міра кута ADB дорівнює -83°.

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