(i) Straight angle (a) less than one-fourth 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 a revolution (v) Reflex angle (e) between and of a revolution (f) One complete revolution

Column A	Column B
(a)Straight angle	1 Less than one-fourth of a revolution
(b)Right angle	2 More than half a revolution
(c)Acute angle	3 Half of a revolution
(d)Obtuse angle	4 One-fourth of a revolution
(e)Reflex angle	5 Between 1/4 and 1/2 of a revolution

Column A	Column B
(a)Straight angle	3 Half of a revolution
(b)Right angle	4 One-fourth of a revolution
(c)Acute angle	Less than one-fourth of a revolution
(d)Obtuse angle	Between 1/4 and 1/2 of a revolution
(e)Reflex angle	More than half a revolution

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