Young children can be given symmetrical shapes (e.g., isosceles triangles and trapezoids, rectangles, rhombuses) to put them together and see whether the combination of two (or more) symmetrical ...

A 2D shape is symmetrical if you draw a line through it and it looks exactly the same on either side of the line. Find out more in this Second Level Bitesize guide.

How do we get such beautiful, ornate, and symmetrical shapes of galaxies — pinwheels, ovals, spirals, and central bars — when the same gravitational forces are at work as those that affect ...