How to make a Christmas tree from cardboard

Start by drawing templates for the future Christmas tree, or you can draw on green cardboard. Cut out the blanks. This is how it turned out for me: herringbone template with mandatory indents - edges for gluing on cardboard

And there should be four Christmas tree sides

And in order to cover the bottom, there should be a square blank. Glue all the templates to the square on the edges

And assembling our Christmas tree

Glue the branches together, trim any excess bumps. It should look like this

Well, and if it will be necessary to make the Christmas tree hanging, we make a loop from tinsel

You can decorate this cardboard Christmas tree as you see fit.