wondered if anyone can help me as I'm a beginner.
I've draw two rectangles, filled, and two circles unfilled. I've arranged them and would like to combine them to produce a "U" shape that will be filled.
I can see that I need to remove the top half of the circles and join the bottom halves to the rectangles and then fill the whole object.
Would anyone direct me in how to do this
quick and easy and allows you to keep the original. Use the Smart Fill tool and click inside each area you want then move those shapes aside then weld them together
You could also use that approach, but with only a single Smart Fill to get the bottom of the "U". You already have the rectangles.
Myron has shown a couple of ways to do this.
Another way would be to use the Virtual Segment Delete tool, then Join Curves to create a single curve shape from the resulting pieces:
There are lots of different ways one could approach this, and lots of room for personal preference and habit. I like seeing how different people approach a given task, because I often learn something new from it.