Free interactive math game: Lines of Symmetry — How many axes?. Part of the Geometric Shapes category on MathKite.
Taken from the generator that powers this exercise. A fresh set appears every time the page is opened, and the printable worksheet holds ten of them.
Counting the lines of symmetry in a shape.
Look for every fold that would leave the two halves matching exactly.
A square has four, a rectangle has two, and a regular pentagon has five.
Giving a rectangle four lines. Its diagonals are not lines of symmetry.