Sine of Angle A= BC\AB Sin of Angle A = opposite\hypotenuse.
A trigonometric function that is defined as the ratio of the leg opposite the angle to the hypotenuse of its right triangle.
(trig) Ratio of the opposite side to the hypotenuse of a right-angled triangle
In a right triangle, the ratio of the length of the side opposite the angle to the length of the hypotenuse.
See primary trigonometric functions.
Sine of an angle of a right angle triangle is equal to the opposite side divided by the hypotenuse.
Sin(q) is the y- coordinate of the point on the unit circle so that the ray connecting the point with the origin makes an angle of q with the positive x- axis. When q is an angle of a right triangle, then sin(q) is the ratio of the opposite side with the hypotenuse.