The Compendium Geometry is an eBook providing facts, formulas and explanations about geometry. 
Home Analytic Geometry Triangle Half Angle Relations in a Triangle  
See also: Relations between Angles and Sides in Triangles, Mollweide's Formulas  
Search the VIAS Library  Index  
Half Angle Relations in a Triangle
The half angles of a triangle can be related to the legs of it in the following way:
Please note that the parameter f denotes half of the circumference of the triangle.


Home Analytic Geometry Triangle Half Angle Relations in a Triangle 