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vio18
@vio18
August 2021
1
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по данному чертежу найдите величину угла DOB с решением
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OmegaRingy
∠DNB = (180 - 105 = 75°)
∠DNB = ∠NDX ⇒ NB║DO
∠OBY = (180 - 80 = 100°)
∠DOB = ∠OBY = 100°
Ответ: 100°.
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Answers & Comments
∠DNB = ∠NDX ⇒ NB║DO
∠OBY = (180 - 80 = 100°)
∠DOB = ∠OBY = 100°
Ответ: 100°.