Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle. Right-Angled Triangle A right-angled triangle (also called a right triangle) is a triangle with a right angle (90°) in it.A name to each side of a right triangle Sine, Cosine and Tangent cos 0°, sin 0°, tan 0° or θ=0° Here we have a right-angled triangle. The standard is the angle A. L..
