Fold (or pretend to fold) an object in half in different ways, and if the edges and corners match exactly up to each other, that is a line of symmetry. If you want to count all the lines of symmetry, use the method above but tally the amount of lines of symmetry you count.
Chat with our AI personalities
No because diagonal lines do not count. Even though they might fit perfectly inside the rectangle, but those don't count. Only lines going horizontally or vertically count as lines of symmetry. :)
2 lines of symmetry
A nephroid has 2 lines of symmetry.
A parallelagram can be a square, which has four lines of symmetry or a rectangle which has two lines of symmetry but the generic parallelagram has zero lines of symmetry
5 lines