Предмет: Геометрия, автор: 45455557777777

помогите срочно)))))​

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Автор ответа: Аноним
1

4) <MDN = 90° => ΔKDN & ΔMDK — прямоугольные треугольники.

<K = 40° => <KMD = 90-40 = 50°.

Вывод: 4) B).

3) <MNE — смежной угол с <MND, тоесть: <MND = 180-115 = 65°.

<MDN = 90-65 = 25°.

Вывод: 3) Б).

2) <KNM = 180-115 = 65°.

Вывод: 2) Г.

1) <KMN = <KMD + <DMN = 50+25 = 75°.

Вывод: 1) Д).

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