в треугольнике абс б = 80 градусов угол а на 20 градусов больше угла с найдите углы а и с

в треугольнике абс б = 80 градусов угол а на 20 градусов больше угла с найдите углы а и с
- Предмет:
  Геометрия
- Автор:
  wesley
- 5 лет назад

Ответы 2

спасибо тебе
- Автор:
  giselaarmstrong
- 5 лет назад
- 0
Пусть угос С=х,угол А=х+20,угол С=3х.Сумма углов треугольника=180 градусов. Тогда получаем уравнение:х+(х+20)+3х=180х+х+20+3х=1805х+20=1805х=160х=32 (угол С)угол А=х+20=32+20=52 градусаугол В=3х=32*3=96 градусовОтвет:52 градуса,96 градусов,32 градусаПодробнее - на Znanija.com - https://znanija.com/task/630410#readmore
- Автор:
  totognqy
- 5 лет назад
- 0
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объясните, пожалуйста,почему решается 1 и 2 пункт вот так? просто списывать не хочу,ибо толка - 0.
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в треугольнике абс б = 80 градусов угол а на 20 градусов больше угла с найдите углы а и с

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