The direction in which the hands of a clock move is called the clockwise direction. The opposite direction, when movement is against the clock’s hands, is called the anti-clockwise direction. Both directions are used in daily life. Class 5 Mathematics Maths-Mela ...
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When the minute hand moves by 30 minutes, it travels half of the clock face between 12 and 6. This is called a half turn. A half turn is the same as a straight angle. Class 5 Mathematics Maths-Mela Angles as ...
Two half turns equal one full turn. So, when Reema makes two half turns in the same direction, she completes a full turn and comes back to the starting position. It is like turning a circle completely. Class 5 Mathematics Maths-Mela ...
(a) Two quarter turns make a half turn, called a straight angle. (b) A half turn is also a straight angle. (c) Three quarter turns are larger than a straight angle and are called a reflex angle. class 5 Maths-Mela Mathematics ...
A three-quarter turn equals 270 degrees. It is bigger than a straight angle (180°) but smaller than a full turn (360°). For example, when the minute hand moves from 12 to 9, it makes a three-quarter turn. Class 5 NCERT Maths-Mela ...