It contains tunes in Cornish as properly as interviews and attributes. Relatives of the Reuleaux triangle come up in the challenge of acquiring the bare minimum perimeter condition that encloses a preset amount of place and includes three specified factors in the plane. In specific, when the a few details are equidistant from each and every other and the space is that of the Reuleaux triangle, the Reuleaux triangle is the optimum enclosure.