# A triangle has sides A, B, and C. The angle between sides A and B is #pi/4# and the angle between sides B and C is #pi/12#. If side B has a length of 4, what is the area of the triangle?

##### 1 Answer

Mar 16, 2017

Area=1.73

#### Explanation:

First you can figure out the last angle of the triangle which is

then you can use the law of sines to figure out another side.

then do that again to find the last side

then you can use Heron's formula.

First find S

then substitute