Предмет: Геометрия, автор: kamilamelnichuk208

ОЧЕНЬ СРОЧНО.. нужно здать до 13:00
ДАЮ 45 БАЛЛОВ ​

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Ответы

Автор ответа: AleksandrLevinNix
0

Відповідь:

∠D = ∠E = 73°;  ∠F = 34°

Пояснення:

∠ D = 180° - 107° = 73°

EF = DF ⇒ Треугольник равнобедренный

Углы равнобедренного треугольника при основании равны

∠D = ∠E = 73°

Сумма углов треугольника = 180°

∠F = 180° - (∠D + ∠E) = 180° - 146° = 34°

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A created
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