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Learn to identify lines of symmetry, rotational symmetry order, and perform enlargements with scale factors. Practice finding the centre of enlargement and scale factors for shapes.
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Unit 36 36.1 Lines of Symmetry
Complete the diagrams so that each shape has only the lines of symmetry shown by the dotted line
Unit 36 36.3 Order of Rotational Symmetry
What is the order of rotational symmetry? 2 ? 2 ? 1 or none 3 ? ?
Complete the diagrams below so that they have the given rotational symmetry about the point. Order 4 Order 2 Order 3 Order 4
Unit 36 36.3 Enlargements
Enlarge this shape using the given centre of enlargement and scale factors: (a) 2 (b) 3 What is the ratio of the areas in each case? (a) 4 (b) 9 ? ?
Unit 36 36.4 Finding the Scale Factor and Centre of Enlargement
For each of the shapes give the scale factor and mark the centre of enlargement. ? ? ? ?