How to merge two shapes in Sketch so that everything is "smooth"?

Question

Computer networks

Greetings.
I decided to play around in Sketch, but I don’t understand how to connect the two drawn shapes (a rectangle and a trapezoid) so that there is no sharp corner at the junction. This place is located at the junction between two figures. Tell me how to do it.

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I tried it in Figma, so everything connects all the dots automatically.

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Answer 1

you need to add a route to cisco to microtik 2 via microtik 1 and dial from microtik 2 to cisco via microtik 1
cisco <-> microtik 1 <-> microtik 2

Answer 2

https://linkmeup.ru/blog/14.html

Answer 3

Sketch has a different mechanics for working with a vector. There are no "vector networks", so you can not connect several lines at one point. You will either have to lay the line in a separate layer, or use flatten and union.