Answer:
They are very important, it's a part of geometry. Earlier scientists gave law and theory.
Everyone knows that law is true or false , hypothesis, postulated , or etc but today everything you want to be prove you can't give proof then your law and/or theory aren't acceptable. You could a fail a math assignment, or not do good on a project at work.
One example of using a proof is in court/law. By proving someone innocent or guilty you decide their fate. If you get it wrong, it's not like failing a math test, it is someone's life, you could put them away for something they didn't do.
Step-by-step explanation: