How to make paper cups
< br > 2。 Draw two concentric circles on one of them, and the small circle inside is the bottom of the cup, that is, the diameter of the small circle is the diameter of the cup; "/>;
< br > 3。 Cut along the radius of the outer circle; "/>;
< br > 4。 Then use the tip of the knife to cut between the big circle and the small circle along the straight line shown in the figure. After cutting, erect each small part and pay attention to folding it along the arc of the small circle; "/>;
< br > 5。 Stick double-sided tape with the width equal to the height of the small piece just erected on the edge of another piece of paper; < br > 6。 Then stick each small base on the paper with adhesive tape, as shown in the figure. In this way, stick each small piece in order. Paper is rolled into the shape of a cup; "/>;