A right angle equals 90°. It is formed by a quarter turn, like the corner of a square or the hands of a clock when they show 3 o’clock. So, the correct answer is (b) 90°.
class 5 Maths-Mela Mathematics Textbook Chapter 3 Angles as Turns question answer
CBSE Class 5 Maths-Mela Chapter 3 Angles as Turns solutions
A right angle is a special angle that equals exactly 90°. It is formed when something turns one-fourth of a circle. For example, when the hands of a clock are at 12 and 3, they form a right angle. It looks like the corner of a square or the English letter “L”. Therefore, the correct answer is (b) 90°, which represents a right angle.
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