There are two circles and is the trapezoid such that is tangent to,, and is tangent to,, . Let be a line passing trought and tangent to (other than), Let be a line passing trought and tangent to (other than).
Mayroong dalawang bilog at ay ang trapezoid tulad na ay padaplis na,, at ay padaplis na,, . Hayaan maging isang linya paglipas trought at padaplis na (maliban sa), Hayaang maging isang linya paglipas trought at padaplis na (maliban sa).