Contents Part II: Mesh Tutorials | Chapter 1: Introduction to the 2Dmesh Sketchboard | Print page 1.6. Complete the Region BoundaryClick the Line icon and select Pick.Click the leftmost point to select it.Click the second point to create a line.Click the third point to select it.Click the last point to create a line and complete the boundary. « 1.5. Create an Arc 1.7. Create Lines for Center and Right Areas »