Creo™ Schematics 4.0 Help Center > Design Basics > Drawing > Lines > To Use the Protractor
  
To Use the Protractor
1. Click Geometry. The Geometry tab opens.
2. Click Line and select a line type from the list.
3. Click the sheet to set a line start point.
4. Click Tools > Protractor. The Protractor dialog box opens. Use the arrows and the angle buttons to constrain the direction of the current line.
5. To create a line segment, type the length of the line into the box next to and press ENTER or click Apply, or click and select two points on the sheet. The distance between the two points is the length of the line.
6. Click Apply to create another segment or click Cancel to close the Protractor dialog box.