A half turn equals two right angles. Each right angle is a quarter turn, so two quarters make a half. For example, when the clock’s minute hand moves from 12 to 6, it makes two right angles. Answer: (b) 2.
Class 5 Mathematics Maths-Mela Angles as Turns
Class 5 Mathematics Maths-Mela Chapter 3 Angles as Turns question answer
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A half turn means turning halfway around a circle. Since one right angle equals a quarter turn, two right angles together make a half turn. For example, the minute hand on a clock starting from 12, moving to 3 (one right angle) and then to 6 (second right angle), covers two right angles. Altogether, this makes a half turn, which equals 180°. Therefore, the correct answer is (b) 2.
For more NCERT Solutions for Class 5 Mathematics Maths-mela Chapter 3: Angles as Turns Extra Questions & Answer:
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