Читать книгу The Quilter's Bible - Linda - Страница 56

A trapezium or trapezoid is a quadrilateral (a shape with four sides) which is actually based on a triangle. See also Patchwork with Diamonds and Polygons.

Drawing – The shape can be created by cutting the top off a triangle.

Cutting – The size of the triangle to be cut off can be determined by drawing the diagram on graph paper, adding the seam allowance as shown and then cutting off the grey-shaded triangle.