Предмет: Математика, автор: kapkova1985

один из углов треугольника в 4 раза меньше другого и на 30 градусов меньше третьего. найдите все углы треугольника.

Ответы

Автор ответа: ToryTod

пусть х-самый маленький угол
тогда х+30-второй угол, а 4х-третий угол
сумма углов треугольника равна 180 градусов
составляем уравнение
х+х+30+4х=180
6х+30=180
6х=180-30
6х=150
х=25
угол 1=25 градусов, угол 25+30=55
угол 3=4*25=100

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