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Sagot :
exterior angle
- 60 + 2x = 180 - 60
- 2x = 120 - 60
- x = 30
then
- x + y + 60 = 180
- 30 + 60 + y = 180
- y = 180 - 90
- y = 90°
Answer:
90 degrees
Step-by-step explanation:
The angle is a right angle, because its straight up. A right angle is always 90 degrees.
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