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

            

(a) Acute. (b) Obtuse. (c) Right. (d) Reflex. (e) Straight. (f) Acute, acute.

1. Match the following :

(i) Straight angle

(a) Less than one-fourth of a revolution

(ii) Right angle 

(b) More than half a revolution

(iii) Acute angle

(c) Half of a revolution

(iv) Obtuse angle

(d) One-fourth of a revolution

(v) Reflex angle

(e) Between  \frac{1}{4}  and  \frac{1}{2}  of a revolution

 

(f) One complete revolution

                                

                         

                                       

                

(i) Straight angle  (c) Half of a revolution (ii) Right angle      (d) One-fourth of a revolution (iii) Acute angle (a) Less than one-fourth of a revolution (iv) Obtuse angle    (e) Between    and    of a revolution (v) Reflex angle    (b) More than half a revolution  
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