Page 172 - MathGPT_V1.0_C5

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Turn

When a shape is rotated clockwise or anti-clockwise through an angle, it turns.




A turn can be a quarter turn  1 or 90° , a half turn   1 or 180° a three-quarter turn  3 or 270°





 4   2   4 
and a full turn (360°).

Original posi�on 1 turn (clockwise) 1 turn 3 turn
2
4
4

Original posi�on 1 turn (an�-clockwise) 1 turn 3 turn
4
2
4
Quarter Turn
1
Quarter turn one-fourth turn means rotating a shape through an angle of 90°.
4
Look at the following pairs of shapes. Each pair has one original shape and its rotated
1
shape by .
4

1 Turn 1 Turn
4
4

Original posi�on Quarter turn 1 Original posi�on Quarter turn
4
Some shapes look same even if we give them a quarter turn.

Original posi�on Quarter turn Original posi�on Quarter turn
Half Turn

1
Half turn means rotating a shape through an angle of 180°.
2
1
Observe the shapes as shown. Each shape turns by .
2

170 Mathematics-5