
Steps
Select two lines.
Hover over the "Constraint" icon in the toolbar.
Click the "Perpendicular Constraint" icon, and the two lines will be set perpendicular.
Right-click or press Esc to exit.

Steps
Select two lines.
Hover over the "Constraint" icon in the toolbar.
Click the "Perpendicular Constraint" icon, and the two lines will be set perpendicular.
Right-click or press Esc to exit.