Classify each one of the following angles as right, straight, acute,obtuse or reflex:

(a) Acuteangle as its measure is less than 90º.

(b) Obtuseangle as its measure is more than 90º but less than 180º.

(c) Rightangle as its measure is 90º.

(d) Reflexangle as its measure is more than 180º but less than 360º.

(e) Straightangle as its measure is 180º.

(f) Acuteangle as its measure is less than 90º.