List some of the identifiable features of renaissance art and architecture ( as opposed to medieval art)

The main features in Renaissance art and architecture were:

Contrary to the characteristics of the medieval style they were:

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.

which empire had the greatest influence on the history and cultural development of russia?