Triangles and law of tangents
The "Law of Tangents" can be used to calculate the angles or sides of a triangle.
The "Law of Tangents" can be expressed as
(a + b) / (a - b) = tan 1/2 (A + B) / tan 1/2 (A - B) (1)
a, b and c = length of sides in triangle (m, ft ...)
A, B and C = angles in the triangle (degrees)
- en: triangle law tangents