A triangle has sides A,B, and C. If the angle between sides A and B is #(5pi)/8#, the angle between sides B and C is #pi/12#, and the length of B is 3, what is the area of the triangle?
Find h using the sin rule. Then use h to determine the area.
Target is to be able to apply
To do this we need to find
The sum of the internal angles in a triangle is
Thus we have