Rectangular placemats fit great on a square or rectangular table. But a lot of outdoor furniture sets feature round tables. This is one of those "square peg in a round hole" problems. Our project will help you make trapezoidal placemats, which fit nicely together when placed around a circular table. The sewing is the same as a rectangular placemat, but the shape gives a beautiful effect for each place setting. Your guests will be impressed – especially your seventh grade math teacher.