Предмет: Геометрия, автор: 1kn0wn

Определи величины углов равнобедренного треугольника NRG, если внешний угол угла вершины между боковыми сторонами R равен 160°​

Ответы

Автор ответа: Аноним
4

Ответ:

20, 80, 80 градусов

Объяснение:

тк. угол NRD внешний => <NRG=<RNG+<RGN=160 градусов=> тк. треугольник NRG- равнобедренный=> <RGN=<RNG=160/2=80 градусов =>

<NRG=180-160=20 градусов.

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