Two dimentional geometry
Circle equation Intersection of circle and line Tangent lines from a point to circle Circle defined by 3 points Two circles intersection and lapping area Three circles intersection and lapping area Three tangent circles
A point inside a circle Tangent lines between two circles Line equation Parallel lines Intersection of two lines Line defined by two points Distance of a point to a line
Equileteral, right and scalene triangles Triangle defined by 3 points A triangle given by 3 lines A point inside a triangle Ellipse Intersection of ellipse and line Collinear 2 and 3 dimentional points
Irregular quadrilateral Parallelogram, rhombus and isosceles trapezoid Polygons Cone, pyramid and truncated square pyramid Arc, segment, sector and torus
Three dimentional geometry
Sphere Sphere and line intersection Two spheres intersection Sphere defined by four points Plane defined by three points Distance of a point to plane Plane and line intersection
Coplanar points Two planes intersection Three planes intersection