As far as my knowledge is concerned a perfect circle can be drawn but drawing a perfect straight line is impossible as its definition itself is "locus of a point having infinite radius."
Geometrical compass To draw a perfect circle, and another compass for determining directions
It is the circle's diameter
because if it had 4 straight lines instead, we would call it a rectangle.
Radii
Yes, it is indeed.
A circle....
A circle is a round geometrical shape
A circle is a special type of geometrical figures. Each point on a circle corresponds to different angle.
A perfect circle can not be drawn by only using the hand. Even A computer won't be perfect as a circle is just lots of tiny straight lines put together. A perfect circle wold be that stays covered no mater how much u zoom in CHECk WITH MICROSOPE
No, some of the geometrical answers are wrong.
No one really because a circle is a natural geometrical shape seen throughout nature.
No. No part of a circle is straight.