1. The heart shape seems to come from a plant seed used in the 7th century B.C. for Birth Control. Grown in Africa the seed is in the classic "heart" shape and was used so heavily by the Ancient Egyptians for birth control purposes that the plant became extinct.
2. A Catholic woman had a vision/dream of this classic "heart" shape in the Middle Ages. Some Catholics believe this to be it's origin.
3. Some naturalists believe it resembles a women's breasts or bottom. "The Naked Ape" author postulated this.
As for me, the Egyptians had it going on in many respects for many things the Romans, Greeks and today's Modern people do and say today, including a lot of our religious beliefs. I tend to lean towards the first answer above.
If you look at a human heart at a certain angle you can see the general shape.The actual heart came before the symbolic heart.
the shape of the heart is like a cone
A two dimensional heart shape is vertically symetrical.
Its either a heart shape or rectangle but I think mostly a heart shape:)
it does not have a certain shape!
No other shape but the heart is associated with valentines day.
A heart shape isn't a polygon because a heart has to curves. The description of a polygon doesn't list curves.
heart shape
Heart shape
mukang tae ang heart
The fin shape is usaly heart shape,but black.
no