tangent

definition: a ratio of the opposite to the adjacent side of a right-angled triangle
example: I used the tangent of the sides to calculate the length of the hypotenuse.
speech part: noun
synonyms:
definition: a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
example: The tangent touched the arc at its apex.
speech part: noun
synonyms:
definition: a topic that is related, but not the same as, an original topic
example: I was told to talk about boats, but I went on a tangent about trade winds.
speech part: noun
synonyms:

How tangent is being used?