Question

What is a circle?

Answer 1

Circle.

A circle is a spherical form with no corners or edges. The circle is a closed, two-dimensional curved object in geometry. A plane circle formula is:

$\Rightarrow {(x-h)}^2+{(y-k)}^2=r^2$

where

$(x,y)=$coordinate points.
$(h,k)=$ circle's center of coordinate.
$r=$circle radius.

Hence, The circle is the locus of points that move on the plane and their distance from a fixed point is always constant. A fixed point is known as the 'center,' and the set length is known as the 'radius.'