POINT • CIRCLE • CIRCLE

Circles Do Not Intersect, They Are External To Each Other, The Point Lies On The Line Connecting Their Centers

Number of solutions: 2

GeoGebra construction

info
Download GeoGebra file

Steps

  1. Draw a line g, that goes through the centres of the two circles and through the point E
  2. Find the intersection of F
  3. Find the midpoint between F and A and C and F
  4. These midpoints G and I are the results

GeoGebra construction

info
Download GeoGebra file

Steps

  1. Choose a point C as the center for circular inversion. Choose the radius of the circle so that it passes through the center of circle a, to which point C belongs to.
  2. Display circles a and b in the circular inversion around the new circle c, which will create line a' and circle b'.
  3. Construct a line perpendicular to line a' which passes through point C. The new line will intersect with circle b' in two points. Construct two lines parallel to line a', s1 and s2 on the two intersections.
  4. Display both line s1 and s2 back on circle c through circular inversion.
  5. The two newly created circles, k1 and k2, are the solutions to the problem.