Toolbar :

Part-Editor : Constraints toolbar

Menu :

Part-Editor : Add menu > Geometry sub-menu> > Constraints sub-menu > Add Perpendicular

To add :

Click Add Perpendicular Constraint, then click:

•Two Lines

- or -

•A Line and the X–axis / CAD-Line (identical to Vertical Constraint)

- or -

•A Line and the Y–axis (identical to Horizontal Constraint)

Result :

•The two Lines become Perpendicular

- or -

•The Line and Axis become Perpendicular

Notes :

Other terms for 'Perpendicular to...' are 'Normal to...' and 'At Right-Angles to...'.

To Delete :

1.SHIFT+CLICK a sketch-element with a Perpendicular Constraint

The sketch-element and Perpendicular Constraint show in the Selection-Window.

2.Right-click the Perpendicular Constraint element in the Selection-Window

3.Click Delete in the contextual-menu

•Two Lines

The Lines becomes Perpendicular

Perpendicular