Circle inscribed in spherical triangle
118793
Finding circle circumscribed in spherical triangle
141835
Rigorous Proof: Circle cannot be embedded into the the real line!
71861
Circles and tangents and circumcircles
140851
Precalculus unit circle with imaginary axis.
99714
Expected area of the intersection of of triangles made up random points inside a circle, all the triangles must contain the origin
73392
How to prove that triangle inscribed in another triangle (were both have one shared side) have lower perimeter?
135813
Soving a Complex Integral along a circle
40650
Equation for testing if a point is inside a circle
90056
A synthetic geometrical proof required on a result regarding Isosceles triangles.
123102
How do I find the maximum perimeter of a rectangle inscribed in an ellipse?
63074
The equation of a family of circles passing through two given points
10772
Equilateral triangle inscribed in a ellipse
144901
Tangent to a circle through a point
44325
Calculate circle's offset given distorted ellipse, when projected onto a sphere
117894
Four inscribed circles
53152
Find a circle's radius with three known tangent lines
46621
Relationship between the side lengths of a tetrahedron and an inscribed tetrahedron with vertices at the centroids