You can measure the angle between two elements on the drawing. The measurable drawing elements can be any of the following: view and added geometry, center and symmetry lines, sketches, and the sheet frame.
Creo Elements/Direct 3D Access measures angles in the counterclockwise direction. By clicking elements in one direction, you get the complement angle to the one found by clicking them in the reverse direction. Graphical feedback shows an arc spanning the angle to be measured.
To measure an angle
1. On the 3D Access — Annotation tab, in the Utilities group, click the arrow next to Between Points.
2. Click Angle. The Measure dialog box opens.
3. Click two elements in the viewport defining an angle. Use the graphical feedback arc as a guide. The angular value is displayed in the Angle Output box.
4. Continue clicking pairs of elements to determine the angle between them, or click or to complete the command.
You can click to use the output from Angle as input for an interrupted operation.
Between Points.
Angle. The Measure dialog box opens.
or 
to complete the command.