What is the name given to each angle? an angle of exactly 90 degrees, and angle between 90 and 180, an angle less than 90 , and angle between 180 and 360

The angle of exactly 90 degrees is called Right angle.
The between 90 and 180 degrees is called Obtuse angle.
The angle less than 90 is called Acute angle.
Finally, the angle between 180 and 360 is called Reflex angle.

A) 144.44 sq inches i believe