Hi,

I need to be able to construct a circle that is tangental to two circles and a staight line. The url below has an expanded explanation of the problem with two diagrams. I can't currently add pictures to this post so I've had to use my question in a photo forum I belong to instead. Sorry for the inconvenience.

https://www.ephotozine.com/forums/to...rmulae--119523

Thank you in advance for any help.