howto? def point via dist 2 known points

[p1492]

I am using AutoCAD R14, and have been looking for a way to:

-Define a point in a plane by specifying its distance from 2 known points and which of the line of the 2 points the unknown point is on?

AND/OR

-Define a point in 3-space by its known distance from 3 points and which side of the plane of the 3 points the unknown point is on?

Any information is appreciated...

[user0]

If you have two separate lines: Draw a circle at your two known points with a radius = the distance you want. The point you're looking for is where the two circles intersect. Is this kind of what you're looking for?

[OLD-CADaver]

Point filters allow you to build points from the X, Y and/or Z coords. of other points. In conjunction with the FROM osnap, you can do most anything you need.