# 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 =

=