WHO HERE WANTS POINTS AND BRAINLIEST? I KNOW YOU WANT IT!!! COME RIGHT THIS WAY. LETS SEE HOW GOOD YOUR GEOMETRY SKILLS REALLY ARE.

Answer:
Answer choice 2
Step-by-step explanation:
Since the formula for the area of a triangle is base*height/2 and you know that GC is an altitude, the formula for this triangle is (CG)(AB)/2. Hope this helps, and PM me with more questions!