A curve is contained in a circle
65491
if the curvature is constant and positive, then it is on the circunference
149115
Find the centroid of a curve.
5667
Marking points of intersection between two curves
149319
Möbius transformations and concentric circles
105506
Finding the Total Curvature of Plane Curves
7237
How to cut an object along a curve?
112817
Two circles intersection
24730
A circle has the same center as an ellipse and passes through the foci $F_1$ and $F_2$ of the ellipse, two curves intersect in $4$ points.
21005
Parabola and a circle touching at the vertex of the parabola
123939
N circles in the plane
117595
Minimum Modulus Principle for a constant fuction in a simple closed curve
55124
Conformally Map Region between tangent circles to Disk
39416
The space obtained by identifying the antipodal points of a circle
65228
Wrap curve around sphere
138387
Using [midway] to label a curved path at its centre
37448
Two Circles and Tangents from Their Centers Problem
63668
Is the 1-dimension projective line a circle?