# Law of Sines

**Definition : **

In trigonometry, the law of sines is also referred to as sine law, sin formula, or sine rule. It is defined as the equation relating to the length of the sides of a triangle to the sines of its angles. It is the ratio between the side opposite to angle and the side opposite to the right angle (hypotenuse). The below given calculator assists you in calculating the value of sine function from the known opposite and hypotenuse values.

#### Sine Rule Calculator

### Formula :

Sin (α)

= Opposite Side / Hypotenuse