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Do all shapes have lines of symmetry?
not all shapes have lines of symmetry. one example is a triangle.
What do you call the group of shapes which has at least one line of symmetry?
You would call the group of shapes which has at least one line of symmetry symmetrical shapes. Stars, circles, and rectangles are considered symmetrical shapes.
Can shapes have only one line of symmetry?
It all depends what types of shapes, but take for example a circle, it can have multiple lines of symmetry.
What is an axe of symmerty?
There is no such thing. An axis (plural = axes) of symmetry (not symmerty) for any plane figure is a line which divides the figure into two shapes that are mirror images of one another.
What does bi symmetry mean?
Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. It is just like the line of symmetry in maths for 2D shapes such as an oblong or isosceles triangle. Examples of organisms that have bilateral symmetry are all mammals, birds, fish, reptiles and amphibians, as well as insects, e.g. ants and butterflies; arachnids, e.g. Spiders and crustaceans, e.g. crabs and lobsters.
