With great care.
You will need a large scale, professional, protractor to mark out an angle of 13.8 degrees.
Cut a 45 degree angle "going the other way".
A 45 degree (Acute) angle.
When you say "crown cut" I think you are referring to a compound angle cut. A compound angle is 2 angles cut at the same time. In crown for instance you put the trim in the saw at a 45 degree angle, and tilt your saw blade at a 45 degree angle as well.
Diagonal of a square?
You set the bevel on your saw to a 45 degree angle. Then set the angle on your saw base to the angle of your plumb cut.
A right angle is 90 degrees. That's like cutting straight across. A 45 degree angle is exactly half of that. Cut on the diagonal.
We'll generally use a "miter box" to hold the stock to be cut in a fixed position, and then hold the saw at a fixed angle to the stock. Most miter boxes will allow 90 degree, 60 degree, 45 degree or 30 degree cuts. Some specialized ones allow you to cut at any arbitrary angle to the stock.
lay out the pattern on a 45" degree angle on .cloth
Any angle that you like. There are no constraints on a single angle of a decagon, only on their sum.
Any angle can cut a polygon.Any angle can cut a polygon.Any angle can cut a polygon.Any angle can cut a polygon.
18 to 24, 15 to 30
The interior angle of a regular hexagon is 120 degrees.