A triangle has sides A, B, and C. If the angle between sides A and B is #(pi)/12#, the angle between sides B and C is #(3pi)/4#, and the length of side B is 9, what is the area of the triangle?
1 Answer
Jun 27, 2016
Area of triangle is 14.777
Explanation:
Length of side b = 9
Angle between sides a and b =
Angle between sides b and c =
Sum of the angles of a
Hence, angle between c and a =
Using sine rule =
we get
A =
=