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Topic: Reflections, Rotations, Translations and Enlargements; Congruence and Similarity (Higher - Unit 3)

Specification References: G1.6 G1.6 Recognise reflection and rotation symmetry of 2D shapes.

Candidates should be able to:

• recognise reflection symmetry of 2D shapes
• identify lines of symmetry on a shape or diagram
• draw lines of symmetry on a shape or diagram
• understand line symmetry
• draw or complete a diagram with a given number of lines of symmetry
• recognise rotational symmetry of 2D shapes
• identify the order of rotational symmetry on a shape or diagram
• draw or complete a diagram with rotational symmetry
• understand line symmetry
• identify and draw lines of symmetry on a Cartesian grid
• identify the order of rotational symmetry of shapes on a Cartesian grid
• draw or complete a diagram with rotational symmetry on a Cartesian grid 

Notes

Lines of symmetry on a Cartesian grid will be restricted to x = a, y = a, y = x, y = –x

Examples

1. Draw a shape with two lines of symmetry and rotational symmetry of order 2.

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