AutoCAD
This is how an AutoCAD File will look like when you open a new page
Click the 3rd option
Straight forward program; L – Line, C – Circle
You can draw whatever lines you want on AutoCAD
Click the space bar or the Esc to end the command Click space again to continue
Green box – right to left: Selects all the lines that intersect with it
Blue box – left to right: Selects all the lines that are fully inside the box
F8 - restricts the line to be a straight line (Ortho)
F3 – Snap on (green box) lets you to locate the accurate points
Di - To find the distance of your object
Di – shortcut for distance. This is the distance from the 2 points that I’ve chosen