Читать книгу The Quilter's Bible - Linda - Страница 50

A half-square triangle is created by dividing a square on the diagonal. The triangle has two equal sides and one 90 degree angle.

Drawing – To draw the shape with seam allowances = draw a square with a finished height + ⁷⁄₈in (2.2cm) and divide the square once diagonally to yield two units.

Alternatively, draw a rectangle on paper without seam allowances and mark it into two triangles. Add a ¹⁄₄in (6mm) seam allowance around all three sides of one of the triangles. Cut the fabric to this size.

Cutting – Cut fabric into strips first and then into squares of the desired size. Re-position the ruler so the 45 degree line aligns with the edge of the square and cut across the diagonal. In quilt instructions a symbol may be used to indicate when a square is to be cut into half-square triangles.