Surely, you're joking. > How do you determine how much paint you'd need to paint a wall without basic geometry? You guess, and if you're short, you buy more.

Surely, you're joking. > How do you determine how much paint you'd need to paint a wall without basic geometry? You guess, and if you're short, you buy more. If you're over, you use it on the next job of throw it out. > How about figuring out what angles and lengths to cut materials? There are lots of methods. You can lay it out and mark it on the ground before making cuts. You can build forms and templates out of scrap or cardboard via eyeballing and adjustment. Math can save some time, but you can usually get by without it.