Rotational Symmetry: Definition, Types, Examples | Class 5

Symmetry

Rotational Symmetry for Class 5 Math

In rotational symmetry, a figure looks like same after a few rotations. Here students will learn about the order of rotational symmetry.

In this learning concept, the students will learn to

• Classify rotational symmetry examples.
• Identify the order of rotational symmetry of the circle.
• Evaluate the order of rotational symmetry of the triangle.

Each concept is explained to class 5 maths students using illustrations, examples, and mind maps. Students can assess their learning by solving the two printable worksheets given at the pageâ€™s end.

Download the rotational symmetry worksheet for class 5 and check the solutions for the rotational symmetry questions provided in PDF format.

## Order of Rotational Symmetry:

• The object is said to have a rotational symmetry if after rotation the object remains the same.
• When an object is rotated, the size and the shape of the object do not change.
• The object can be rotated either in a clockwise or in an anticlockwise direction.
• The clockwise direction is in the direction of the hands of the clock.
• The anticlockwise is in the opposite direction of the hands of the clock.

## Rotational Symmetry Examples:

Quarter turn Rotation

• A quarter turn (1/4) is a rotation of one right angle.
• One right angle is equal to 90Â°.
• The image below describes a quarter-turn in a clockwise and anticlockwise direction.
• A figure is said to have a quarter turn symmetry if

Examples :

Half a turn Rotation

• Half a turn (1/2) is a rotation of two right angles.
• One right angle is equal to 90Â°. Therefore, two right angle is equal to 90Â° + 90Â° = 180Â°.
• The image below describes half a turn in a clockwise and anticlockwise direction.

Examples :

Three quarter turn Rotation

• Three quarter (3/4) turn is a rotation of three right angles.
• One right angle is equal to 90Â°. Therefore, three right angle is equal to 90Â° + 90Â° + 90Â° = 270Â°.
• The image below describes a three-quarter turn in a clockwise and anticlockwise direction.

Examples :

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