In a right angled triangle, the sine of an angle is:

The length of the side opposite the angle

divided by the length of the hypotenuse.

The abbreviation is sin

**sin θ = opposite / hypotenuse **

../geometry/images/triangle-q.js?mode=sin

The length of the side opposite the angle

divided by the length of the hypotenuse.

The abbreviation is sin

**sin θ = opposite / hypotenuse **

../geometry/images/triangle-q.js?mode=sin

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