What you need: ruler, protractor, pencil and paper ... it's easy to work out the third angle using the fact that there are 180° in a triangle. Use these to construct a triangle when you know ...

We can draw straight lines using a ruler. To position a ruler accurately, place the point that says 0 at the start of the line you are measuring. With the ruler placed carefully on the line ...

Using a Python script which ... that point to 1/100th of a millimeter. The centimeter and millimeter measurements are indicated by a traditional ruler layout. Looking for more tool hacks and ...