Tangent Theorem

The word tangent theorem is used for various geometric theorems and formulas that deal with tangents:

• A formula that describes a function for a tangent on a curve: see Tangent function
• A formula that relates the sides of a triangle to the angles: see Tangent Theorem
• A formula that relates the points of contact and intersection for a tangent and a secant of a circle: see secant-tangent theorem

This is a disambiguation page for differentiating between several terms identified with the same word.