cotangent
/ˈkoʊˌtændʒənt/
noun
- In a right triangle, the ratio of the length of the side adjacent to an angle to the length of the side opposite that angle. In trigonometry, the reciprocal of the tangent.
- To find the cotangent of the angle, divide the adjacent side by the opposite side.
- The teacher explained that the cotangent of 45 degrees is 1.
- In the math problem, we had to calculate the cotangent of a 30-degree angle.