Yes. With one arm pointing straight up, a division down the center will produce two symmetrical halves, each with 2.5 legs.
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The letters S and N have point symmetry but not line symmetry.
A parallelogram does not have a line of symmetry.
draw line of symmetry for 20
Shapes do not always have lines of symmetry. For example, if you have an irregular shape, it will not have a line of symmetry. I am quite certain though that all geometric shapes have a line of symmetry.
Because linear symmetry defines a line such that the shape is unchanged when REFLECTED in that line.
Box starfish has pentaradial symmetry.
do it yourself, think !
turn symmetry
starfish = pentaradial
A starfish has radial symmetry
radial symmetry
radial symmetry
Radial symmetry
Most Echinoderms have radial symmetry. Sea Urchins, Starfish, Sand Dollars, etc.
pentaradial symmetry ;)
5 lines of symmetry
Their early larvae have bilateral symmetry, but as they get bigger they develop fivefold symmetry. This is apparent in the regular sea urchins, that have roughly spherical bodies, with five equally sized parts radiating out from their central axes.