The term mitreing, however, is not confined to the fitting of timber around a right angle; it
One often hears such terms as "a half mitre," used to denote the fitting of a moulding around an octagonal column or pedestal, and probably it would be more correct to describe the joint as a mitre cut at 221⁄2 degrees. Mitreing consists of halving the angle and making each piece to fit the line of bisection. Should the angle be bounded by straight lines, as at , then the mitred joint will be a straight line, but should the angle be bounded by a curved and a straight line, as at , A, or by two curved lines, then the mitred joint will have to be a curved line if the mouldings are to be of the same section.