If it is a flat umbrella (as if you're looking at it on a paper) then only one - split down the middle vertically.
But if you are looking at a real umbrella, then it has an infinite amount of lines of symmetry because you can go all the way around.
10 lines of symmetry
2 lines of symmetry
There are infinitely many lines of symmetry. Every line can be a line of symmetry for a suitable shape.
There are eight lines of symmetry.
A TRAPIZOID has 2 lines of symmetry
A nephroid has 2 lines of symmetry.
it has five lines of symmetry
2 lines OF SYMMETRY
10 lines of symmetry
4 Lines of symmetry
2 lines of symmetry
2 lines of symmetry
It has 2 lines of symmetry.
no lines of symmetry
5 lines
There is no such thing as 8 lines of symmetry. A circle, for example, has infinitely many lines of symmetry.
There are infinitely many lines of symmetry. Every line can be a line of symmetry for a suitable shape.