Relative
to angle A, this is how the sides of a right triangle
would be labeled. |

**The sine of
angle A equals the length of the opposite side divided by the
length of the hypotenuse.**

**We could write:**

**sin(A) = opp / hyp**

**So, for
example, if the length of the opposite side was 6 and the
length of the hypotenuse was 10, then we would write:**

**sin(A) = 6 / 10**

**sin(A) = 0.6000**