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{{ printedBook.courseTrack.name }} {{ printedBook.name }} The ratio between the lengths of the adjacent side and the opposite side in a right triangle for a specific angle, $θ,$ is called the cotangent of $θ$ and is written as $cot(θ).$

$cot(θ)=oppositeadjacent $

The ratio is always the same for any given angle. If the adjacent side is, for example, twice as long as the opposite side, the ratio is $cot(θ)=12 .$ This quotient holds true because the triangles are bound by similarity. Cotangent only states the **ratio** between the adjacent side and the opposite side, it gives no indication about the lengths of the individual sides.