Предмет: Математика, автор: Аноним

Докажите что а||b ,угол b 80 градусов,угол а =х у

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Автор ответа: y3002062

Ответ:

х=100 у=80 так как угол 80 градусов и угол у помечены одинаковой дугой и угол х равен 100 потому что угол у и угол х смежные значит х+у=180 значит 80+х=180 значит 180-80=100 х=100

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