10cm 4" Metric Pocket Size Aluminium Aluminum Triangular Scale Ruler 1:2.5 1:5 1:10 1:20 1:50 1:100

there are many variations of architect scales here is this one we're going to work with this when I show you how to read it and how to use it reading is not the same as using I'm going to spend a little more time on making sense of the numbers on it then actually using it because using it is going to be straightforward these architect scales come with some numbers on them for example it might say 1.20 just like that you read it as 1 to 20 over 1 proportion of 220 it's a usually you read it as 1 to 20 so it's a 1 to 20 scale and in the scheme and the big scheme of things one represents a one unit of anything it could be 1 meter compared to meters so it could be meters to meters it could be centimeters comparative centimeters millimeters compared to millimeters kilometers to kilometers or I know it's not metric miles - miles or inches 2 inches it doesn't matter as long as the two sides of