CIRCLE • LINE • LINE
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Two Divergent Lines, Both Tangential To A Circle
Number of solutions: 4
GeoGebra construction
Steps
- Construct the axis of the angle that also passes through the center of the assigned circle A, and name it j.
- Find the intersection of the given circle and the angle axis j and name it H, then construct a perpendicular l to the angle bisector j passing through the point H.
- Trace out an angle bisector of the perpendicular l and one of the given lines.
- Name the intersection of this angle bisector and the angle bisector j S1, this is the center of the first circle we are looking for.
- Construct a circle with center S1 and radius HS1.
- Name the second intersection of the given circle and the angle bisector j I and construct the perpendicular m to the angle bisector j passing through the point I.
- Construct the angle bisector of the perpendicular m and one of the assigned lines.
- Name the intersection of this angle bisector and the angle bisector j S2, this is the center of the second circle we are looking for.
- Construct a circle with center S2 and radius IS2.
- Construct an angle bisector that is perpendicular to the angle bisector j and passes through the intersection of the assigned lines. Name it k.
- Construct a perpendicular to one of the assigned lines so that it passes through point A and name it h. Name the intersection of the perpendicular, the given line and the given circle E.
- Name the intersection of the bisector of angle k and the perpendicular h S3, this is the center of the third circle we are looking for.
- Construct a circle with center S3 and radius ES3.
- Construct a perpendicular to the second of the assigned lines so that it passes through point A and name it i. Name the intersection of the perpendicular, the assigned line and the assigned circle D.
- Name the intersection of the angle bisector k and the perpendicular i S4, it is the centre of the last circle we are looking for.
- Construct a circle with center S4 and radius DS4.