### Brain Teasers

# Which Shape?

Which two-dimensional shape has an infinite number of lines of symmetry?

### Answer

A circle. No matter what direction you make a slice through the center, the two halves will be symmetric.Hide Answer Show Answer

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## Comments

very easy

i agree...i knew that when i was 9.

Is it really infinite? Wouldn't it be 360, one for every degree? Unless you want to get into floating points, and the theoretical 0.00000001 then 0.00000002, etc...

Whatever, I'll shutup...

Whatever, I'll shutup...

Sane there can be still be some visible lines between 1 degree and 2 degree, which is not just theroteically but also physically possible through a sharp pointed pen/pencil

Elementary. Really.

Not exactly symmetry, but any regular polygon also has an infinite number of lines that divide the shape into two identical halves.

Not exactly symmetry, but any regular polygon also has an infinite number of lines that divide the shape into two identical halves.

Way too easy.

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