On a miter saw, when you're cutting a 90 degree cut, the miter saw reads zero. On a protractor, it reads 90. So it's an unending source of confusion for people. RON HAZELTON: So Mark, show me how it works.
A ruler is used to measure units of length, inches, feet and yards. Standard rulers have inches on one side and centimeters on the other. A typical ruler measures up to 12 inches, and is equivalent to 30.48 centimeters. This is also equivalent to 1 foot. Each inch on a ruler has markings in between that are a fraction of an inch.
The length is the linear measurement of one side of the rectangle (usually the longest) and the width is the linear measurement of the other side of the rectangle (usually the â¦ shortest).In a square, both the length and the width would be the same.f 50 inches is the perimeter all you can say is that length plus width = 25 inches.