Предмет: Математика, автор: MarinaElish

решить уравнением Круг разднлён на 3 сектора. Сумма углов 1-го и2-го секторов=200градусов. Сумма углов2-го и 3-го секторов=290 градусов. Чему=угол 2-го сектора?

Ответы

Автор ответа: andruxa9

130 градусов 2 угол. 3 угол = 360 - 1 и 2 угол = 160 градусов, тогда 2 угол равен 130 градусам

Автор ответа: MarinaElish

я знаю это решение,но нужно решить уравнением не знаю как. Большое спасибо!!!!!

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