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No, Acute angle is greater than 0 degree and less than 90 degrees. We can convert negative angle into positive angle by adding 360. So, -145+360=215 degrees. 215 degress is greater than 180 degrees so it is a reflex angle.
SOL - Angle less than 90 degrees but more than 0 degree is called acute angle therefore -145 is not an acute angle .
An angle which is greater than 0 degree but less than 90 degree is said to be an Acute angle.
there fore 145 degree is not an acute angle it is an obtuse angle which is greater than 90 degree and less than 180 degree.