There are two common ways to place glasses on a table: side by side or in a triangle. In the former, the white wine glass is positioned above the knife. The other glasses are arranged in a row at a 45-degree angle. The red wine glass is on the top left and the water glass is on the bottom right. For a triangle placement, the white wine glass is also located above the knife, but the other glasses are placed at a 90-degree angle to the white wine glass. The red wine glass is on the top right and the water glass is on the bottom right.