Угол BOD и COD -смежные . OE - биссектриса угла BOD, причём угол COD на 21 градус больше угла DOE . Найдите угол BOE

Угол BOD и COD -смежные . OE - биссектриса угла BOD, причём угол COD на 21 градус больше угла DOE . Найдите угол BOE
- Предмет:
  Алгебра
- Автор:
  admiral
- 5 лет назад

Ответы 1

ОЕ - биссектриса, значит, угол ДОЕ= углу ВОС и пусть эти угли составляют Х°, тогда угол ОДС = Х+21 градус.т.к. смежные угла ( ВОД и СОД) в сумме дают 180 ° составить уравнениех+х+х+21 = 1803х = 180 - 213х = 159х= 159 : 3х= 53 , значит угол ВОЕ = углу ДОЕ = 53 °
- Автор:
  gemap3tr
- 5 лет назад
- 0
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Ответы 1

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