an O
another name for a circle is an O
and a spherical
circumference
A pie graph.
A pie chart.
Another name for a circle's line of symmetry is its diameter. A circle has an infinite number of lines of symmetry, all of which pass through its center and can be represented by any diameter. Each diameter divides the circle into two equal halves, demonstrating its symmetric properties.
it becomes a circle inside another circle
another name for a half circle is semi-circle
A circle.
circumference
A pie chart.
A pie graph.
from the word circle. it never stops. just like a circle.
sector
Circle Circumrotation Circumvolution Gyration Orbit Revolution
If you are looking for a crossword answer, try Hora.
line
4 wheel steer.
We always referred to that as an arc.