JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Tangent 2D Constraint Used to constrain curves to be tangent to other curves or linear segments. You can access this tool from the following: Ribbon: Modeling > Constraints > 2D Ribbon: Drawing > Constraints > 2D Toolbox: 2D Constraint Tools Key-in: CONSTRAINT2D CREATE TANGENT2D To Apply a Tangent 2D Constraint Parent topic: Applying Constraints