Among these, a door and a file cover can make a half turn because they open wide around their hinges. Scissors and clothes clips cannot make a half turn; they only open and close a little.
Class 5 Mathematics Maths-Mela Chapter 3 Angles as Turns question answer
Class 5 NCERT Maths-Mela Chapter 3 Angles as Turns solution
A door and a file cover are objects that can make a half turn. They rotate widely on their hinges, sometimes even more than a half turn, depending on how much we push them. On the other hand, scissors and clothes clips cannot make half turns. Scissors rotate only a small angle to cut and clothes clips open and close slightly. Hence, only doors and file covers make half turns.
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