Symmetrical Designs

Which of the following alphabet cutouts can be made by just drawing half (1/2) or quarter (1/4) of the letter? You can do it by drawing lines of symmetry on the letters. E N X T K V O

Which of the letters have a vertical line of symmetry?

Which letters have both vertical and horizontal lines of symmetry?

Which digit(s) have reflection symmetry?

Which digit(s) have both rotational and reflection symmetries?

Now, let us look at the following numbers: 11, 1001. Do these have (a) rotational symmetry, (b) reflection symmetry or (c) both symmetries?

Cut out squares and equilateral triangles with the same side length. These are provided at the end of the book. Make different symmetrical designs by using these two shapes.

Now, make your designs. Sort your designs in 3 categories—designs with only rotational symmetry, designs with only reflection symmetry, and designs with both rotational and reflection symmetry.