marqueen1
24.09.2019 •
Social Studies
Where is the zagros mountain located?
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Ответ:
∠NOP = 53°
Step-by-step explanation:
According to exterior angle theorem,
In a triangle, an exterior angle is equal to the sum of the two opposite interior angles.
∠NOP = ∠MNO + ∠OMN
Put ∠NOP = ( 7x - 17)°, ∠MNO = (x + 20)° and ∠OMN = (3x - 7)°
Therefore,
∠NOP = ( 7(10) - 17)° = (70 - 17)° = 53°