Friday, 4 March 2016

The Sine Rule

The Law of Sines (sine rule) is an important rule relating the sides and angles of any triangle (it doesn't have to be right-angled!):
If a, b and c are the lengths of the sides opposite the angles A, B and C in a triangle, then:
 a   =   b   c 
sinA    sinB  sinC
A triangle
If you wanted to find an angle, you can write this as:
sinA =  sinB  = sinC
   a          b          c 


No comments:

Post a Comment