Hi nicobaloncesto,
welcome to Fusion. I'll say there's two answers to your problem here. I'll show them both to you.
the immediate answer is you can turn off the sketch points in your sketch palette.
The bit longer answer is that the sketch points actually are telling you something.
As you can see with Sketch Points turned on, the open ends of the triangle are indicated by the points. if you take a look at the apex of the triangle where the two lines are connected there are no points, even with the points turned on. This also is exhibited in the rectangle. Closed shapes and connected lines will not show points.
I suspect that your sketch may not have all the open lines (points showing) properly intersecting the adjacent lines.
So how to fix this?
you can use constraints to create a coincident conditions, however, in your particular case it could shift your geometry in an undesirable way.
Or, you can use the trim and extend commands, while editing your sketch, on the open lines to force them to intersect properly to the adjacent geometry.
hope this helps and happy to answer any further questions you may have.
hope this helps,
Jamie Gilchrist
Senior Principal Experience Designer
