A triangle has sides A, B, and C. Sides A and B have lengths of 6 and 3, respectively. The angle between A and C is 13π24 and the angle between B and C is 3π8. What is the area of the triangle?

1 Answer
Mar 30, 2017

The area of the triangle is 2.33(2dp) sq.unit.

Explanation:

The angle between sides AandC is b=13π24=1318024=97.50
The angle between sides BandC is a=3π8=31808=67.50

The angle between sides AandB is c=180(97.5+67.5)=150

We know sides A=6,B=3 and their included angle c=150

The area of the triangle is At=12ABsinc=1263sin15=9sin152.33(2dp)sq.unit [Ans]