Trying to figure out how much I need to shorten my shower curtains

(Chapter 18 Problem Solving and Making Decisions in my book)

Six months ago, I moved into a new apartment. I bought new shower curtains and a liner. Unfortunately, the shower curtain is too long and it is hitting the floor and I am afraid of tripping on it. Sometimes when I am in the shower, I will step on the liner and that shouldn’t be happening. The shower curtain rod is brand new and it sits on the top of the shower/tub enclosure. Today I finally decided to make the shower curtain and liner shorter. The question is “how many inches off the floor should it be?” I had no clue so I decided to do some research on the computer. When I saw a couple of pictures that helped me to figure out that it should be a couple inches from the floor.

Now I’m wondering if it is my brain, or would someone who doesn’t live with a memory impairment also have to look this up. I guess I will just have to wonder because I have no idea what the answer to that really is.