An angle of 145o is obtuse.
An angle less than 90o is an acute angle
An angle of 90o is a right angle
An angle between 90o and 180o is an obtuse angle
An angle of 180o is a straight line
An angle greater than 180o is a reflex angle.
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An angle of 145 degrees is an obtuse angle because it is greater than 90 but less than 180 degrees
An obtuse angle
An angle of 145 degrees is more than 90 degrees and less than 180 degrees, so is classed as being an obtuse angle.
35, 145 and 145 degrees
An angle of 145 degrees is more than 90 degrees and less than 180 degrees, so is classed as being an obtuse angle.