Is it possible to draw a perfect circle

Droolinggimp said:
Out of interest, why isnt there such thing as a perfect circle?
Click to expand...

Think about areas of an n-sided regular polygon inscribed (or circumscribed) on a circle, e.g.:

circumscribedwebeg4.gif


As the number of sides of the polygon increases, the polygons get closer and closer to the shape of the circle.

Therefore you'd need a polygon with an infinite number of sides to get a perfect circle, which is impossible for us mortal beings (well in practice anyway). A similiar problem is the squaring of the circle, i.e. finding a square that is the same area as a circle. This was proven to be impossible fairly recently since Pi is a transcendental number.
 
Last edited:
$loth said:
how?
Click to expand...

take a piece of paper & fold over one of the corners to the middle, put your pencil onto the folded part & move it right up to the corner & without lifting your pencil off the paper you make a dot on the paper underneath, then - keeping the pencil on the folded part of the paper - draw a line 2" or so & then move off onto the lower part of the paper, unfold the corner part & continue to draw a circle with the dot more or less in the centre - You just made a circle with a dot without lifting your pencil off the paper:D
 
izzy eckerslike said:
take a piece of paper & fold over one of the corners to the middle, put your pencil onto the folded part & move it right up to the corner & without lifting your pencil off the paper you make a dot on the paper underneath, then - keeping the pencil on the folded part of the paper - draw a line 2" or so & then move off onto the lower part of the paper, unfold the corner part & continue to draw a circle with the dot more or less in the centre - You just made a circle with a dot without lifting your pencil off the paper:D
Click to expand...

Sorry do what now? I can't follow those intructions.
 
You must log in or register to reply here.
Back
Top Bottom