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).
Top Grain. Top-grain leather means leather that has been made from the top or outermost layer of cowhide. Full-grain leather is a top-grain leather that shows all its natural grain and is the most natural. If labeled as top-grain but not full-grain, the leather may be sanded or buffed out to reduce blemishes. It is not as processed as some other forms of leather, however. Top-grain leather is soft and shows natural character.