Story that includes a description: "Two concentric circles, intersecting at three points"
1890
Children's book with "square triangles" in parallel universe?
76001
Construct a fourth circle tangent to 3 circles forming a tangency chain
74505
3 square in a circle (geometric question)
25210
Science fiction short story taking place in a universe with a higher gravitational constant
67000
Old short story with multidimensional being/monster
21005
Parabola and a circle touching at the vertex of the parabola
33173
What is the probability that the center of the circle is contained within a triangle formed by choosing three random points on the circumference?
123426
Find the approximate center of a circle passing through more than three points
87850
How can I find the points at which two circles intersect?
59564
Centre of the circle
134594
Story identification: two seraphim in space, and the voice of God
87968
A strange puzzle having two possible solutions
141343
Trying to identify a story about breaking out of a predefined path and no one notices
123939
N circles in the plane
53152
Find a circle's radius with three known tangent lines
59105
New Golden Ratio Construction with Two Adjacent Squares and Circle. Have you seen anything similar?
1018
Help identify the title of a story about the back side of moon being missing