У ривнобедреному трикутнику ABC з основою AC сума кутив A и C доривнюё 166. Знайди уси внутришни и зовнишни кути трикутника ABC?

У ривнобедреному трикутнику ABC з основою AC сума кутив A и C доривнюё 166. Знайди уси внутришни и зовнишни кути трикутника ABC?
- Предмет:
  Геометрия
- Автор:
  lexiejvtv
- 6 лет назад

Ответы 2

Здравствуйте, можете пожалуйста мне тоже помочь со школьным предметом?
- Автор:
  cocow9ga
- 6 лет назад
- 0
< B = 180° - (<A+<C)= 180°-166°=14°
оскілька АВС рівнобедренний, то кути при основі рівні => <A=<B=166°/2=83°
За ознакою зовнішніх кутів трикутника:
<BAK= 180°-<A=180°-83°=97°
<BCL=180°-<C=180°-83°=97°
<CBM=<ABG=180°-<B=180°-14°=166°
- Автор:
  miraclebauer
- 6 лет назад
- 0
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У ривнобедреному трикутнику ABC з основою AC сума кутив A и C доривнюё 166. Знайди уси внутришни и зовнишни кути трикутника ABC?

Ответы 2

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