Trigonometry
Basic

Sine Ratio (SOH)

Ratio of the side opposite an angle to the hypotenuse.

Formula

sin⁡θ=oppositehypotenuse\sin\theta = \frac{\text{opposite}}{\text{hypotenuse}}

Variables

\thetaAngle

Example

sin 30° = 0.5

Did You Know?

The word "sine" is a mistranslation: Arabic "jayb" (bay) was misread, and the Latin "sinus" means a fold or bay.

sineratiosoh cah toa