Предмет: Геометрия, автор: nezrok1234

Промінь ОС лежить між сторонами кута АОВ, що дорівнює 140°. Знайдіть кути АОС і ВОС, якщо один з них на 40° більше за інший.


karpjuklesjaow6cqw: Как посмотреть ответ? Геометрія 7 клас 8. Промінь ОС лежить між сторонами кута АОВ, ∠АОВ =140°. Знайдіть кути АОС і ВОС, якщо відомо, що ∠АОС–∠ВОС =40°.

Ответы

Автор ответа: assistance21
13

Ответ:

Нехай кут AOC більше від BOC на 40°, тоді кут AOC=х°+40°, кут BOC=х°

x+(x+40)=140

x+x=140-40

2x=100

x=50

AOC=50°+40°=90°, BOC=50°

Объяснение:

х-довільне число

Одне число на 40 більше значить це число буде дорівнювати "х+40", а інше на 40 менше значить воно дорівнює "х".

Або "х" і "х-40", але тоді дії будуть трози інші

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