Analyze a design > Measure > To measure a maximum point
  
To measure a maximum point
1. Click Analysis and then, in the Measure group, click the arrow next to Point.
2. Click Maximal Point 3D. The Measure Output and Measure Max Point dialog boxes open.
3. Select the edge or face on which you want to measure the maximum point.
4. Select a measure direction.
5. Click Calculate.
6. Creo Elements/Direct Modeling calculates the 3D point and displays the measured 3D coordinates in the Measure Output window. It also displays graphical feedback for the location of the calculated point.
7. Click the green arrow button to send the measurement to a command.
8. Click the green arrow and calculator button to send the measurement to the calculator.