Mathematics
Grade9
Easy
Question
Find the approximate angle of rotation.
![](data:image/png;base64,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)
- 60°
- 100°
- 150°
- 180°
Hint:
if the angle is not just straight but it leans towards the line it is always less than 90 degree .
The correct answer is: 60°
From observation, the angle of rotation is 60°.
As , one line is just not straight over the other so it is not 90 and it is leaning towards line so , it must be less than 90 and greater than 0 , so 60 is best fit choice here .