Предмет: Геометрия, автор: nazarmaksimenko42

В разностороннем треугольнике один из внешних углов 112 градусов, один из внутренних углов треугольника на 10 градусов меньше смежного с внешним. Найти все углы треугольника.
решите пж срочно

Ответы

Автор ответа: vladzapevalov

Ответ:

Угол, смежный с внешним, он же первый угол треугольника:

$180 - 112 = 68$

Второй угол треугольника:

$68 - 10 = 58$

третий:

$180 - (58 + 68) = 54$

Ответ:

уг.1 = 68°

уг.2 = 58°

уг.3 = 54°

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