Основанонаупр.74стр.29.

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Дано: \(\angle{1}+\angle{2}+\angle{3}=250\degree\) .

Найти: \(\angle{1}, \angle{2}, \angle{3}, \angle{4}\) .

Решение:

\(\angle{1}\) и \(\angle{2}\) — смежные, тогда \(\angle{1}+\angle{2}=\) [ ] \(\degree\) .

Имеем: \(\angle{3}=250\degree−\) [ ] \(\degree\) =[ ] \(\degree\) .

Ответ:[ ] \(\degree\) , [ ] \(\degree\) , [ ] \(\degree\) , [ ] \(\degree\) .