What is the definition of ten percent plan

The Ten Percent Plan was conceived by President Lincoln during the Civil War in order to reunify the Union (North) and the Confederates (South) after the war's end.

answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

step-by-step explanation:

there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

we need

and law of cosines,

the three equations are

see attached image for solution.