Machinist Hand Book
See related links for information about sine charts.
In a right angle triangle divide the opposite by the hypotenuse to find the sine ratio.
Divide -900 by 360, and the remainder will be the angle you need to find the sine of: -900 / 360 = -2.5 --> -900 = 360*(-2 - 0.5), so sine(-180°) = sine(-900°). sine(-180°) = 0
Sine= Opposite/ Hypotenuse Cosine= Adjacent/ Hypotenuse
To find the sine ratio of a right-angled triangle divide the opposite by the hypotenuse. For example: 4/5 = 0.8 units and sine-1(0.8) = 53.13010235 degrees.
Sine ratio = opposite/hypotenuse
Sine = -0.5 Cosine = -0.866 Tangent = 0.577
The sine, cosine and tangent are used to find the degrees of a right angle triangle.
The maximum of the sine and cosine functions is +1, and the minimum is -1.
sine[theta]=opposite/hypotenuse=square root of (1-[cos[theta]]^2)
For a right angle triangle:- hypotenuse = adjacent/cosine or hypotenuse = opposite/sine
its a type of sine bar . it is used in metrology lab .from this equipment we can find tapered angle of a conical spcimen