They remain separated
draw two triangles with overlapping lines
No. You can have at most two vertices where an odd number of lines meet. The required figure has four.
overlapping waves
Use A Ruler
Overlapping contour lines indicate a steep slope or terrain feature with a rapid change in elevation. The closer the contour lines are together, the steeper the slope. It helps to visualize the shape and relief of the land on a topographic map.
you put the thirteen dots parallel to the lines horizontally
18 angles.
Overlapping,Size,Placement,Detail,Color,Converging Lines.
The overlapping sections show elements that belong to each of the two (or maybe three) sets that overlap there.The overlapping sections show elements that belong to each of the two (or maybe three) sets that overlap there.The overlapping sections show elements that belong to each of the two (or maybe three) sets that overlap there.The overlapping sections show elements that belong to each of the two (or maybe three) sets that overlap there.
Making a cross with two 45' lines,giving you the centre where the two lines bisect.
If the two lines are coplanar, then it is a third, parallel, line which is halfway between the two lines. If the two lines are not in the same plane, then I think it will be a saddle shape (paraboloid).