The meaning of SINE is the trigonometric function that for an acute angle is the ratio between the leg opposite the angle when it is considered part of a right triangle and the hypotenuse.

The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse.

Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: To calculate them: Divide the length of one side by another side. Example: What is the sine of 35°? Using this triangle (lengths are only to one decimal place): = …

Mar 13, 2025 · sine, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is sin A = length of side opposite angle A / length of hypotenuse. (The other five trigonometric functions are cosine [cos], tangent [tan], secant [sec], cosecant [csc], and …

SINE definition: 1. (in a triangle that has one angle of 90°) the ratio of the length of the side opposite an angle…. Learn more.

Feb 18, 2025 · The sine function, commonly written as sin (θ), is the ratio of the opposite side to the hypotenuse of a right triangle. It is one of the primary trigonometric functions used in mathematics. The sine function plays a fundamental role in trigonometry, geometry, physics, engineering, and various applications involving periodic phenomena.

Sep 27, 2024 · Generally, we define the Sine function for an angle (say x) and denote it as Sin (x) where x can be measured in radians or degrees. If we suppose a right-angled triangle ABC, then for an angle θ we define sin (θ) as: Sin (θ)= Perpendicular /Hypotenuse = AB/AC. What is …

(in a right triangle) the ratio of the side opposite a given acute angle to the hypotenuse. Geometry. (originally) a perpendicular line drawn from one extremity of an arc of a circle to the diameter …

Sine, written as sin⁡ (θ), is one of the six fundamental trigonometric functions. There are two main ways in which trigonometric functions are typically discussed: in terms of right triangles and in terms of the unit circle.

In a right angled triangle, the sine of an angle is: The length of the side opposite the angle divided by the length of the hypotenuse. The abbreviation is sin sin θ = opposite / hypotenuse