Why do justices use precedents in majority opinions and dissents

(this is for english)

Which illustrates the proper outline for a judge’s opinion on a case? describing case facts, describing judicial opinion, analyzing law, applying precedent describing judicial opinion, applying precedent, describing case facts, analyzing law analyzing law, applying precedent, describing case facts, describing judicial opinion applying precedent, describing case facts, analyzing law, describing judicial opinion

The segments shown below could form a triangle.

Brainliesttt !me : ) why were the eastern european countries attempting to break free of the soviet union?