I have this question:
The triangle ABC is a right angle triangle at the C corner, and have angle x at A corner. We know that the side |AB|=8 and tanx=1/3. What is the AREA of the Triangle?
I've tried to use a mix of the trigometric identites + sin2x+cos2x=1 to solve this, but I always end up with the wrong area. Any tips on how to calculate this kind of question?