## Trivia

Subject:

Re: Not quite provenResponse To:

Not quite proven () Larry Barrett

For case 2C, the starting point is with dots A and B with distance x between them. Then dot C is placed at an angle, less than or greater than 90 degrees, to B the same distance x to B, but at a distance y to A.

One alternative for the fourth dot D is to place it to form a rhombus, with the distance from D to C, B, and A equal to x.

The only other alternative that I can think of is to place D so that it is a distance y to C and A, forming an equilateral triangle with B located at the center, with distance x to A, C, and D.