The right triangle definitions of sine and cosine only apply to acute angles, so a more complete definition is needed. The point where the terminal side intersects the unit circle (x, y) is the basis for this definition. Since the radius (and therefore hypotenuse of the right triangle) is 1, the denominators cosine=adjacent/hypotenuse and sine=opposite/hypotenuse are also 1. Thus, the sine definition is y=sine and x=cosine.
What is Faux Leather? Faux leather is one of several names given to artificial or synthetic leather. These names are often used to describe specific end uses of synthetic leather products such as faux leather (sofa, chair and headboard upholstery), leatherette (auto upholstery, clothing), and koskin (consumer goods).
Patent leather. Red patent leather GENERAL INFORMATION Patent leather is normal leather with a high gloss finish. To obtain this hard, glossy surface, in the final steps of tanning, a varnish or lacquer is applied. This process was invented by an American named Boyden.