Answer:
9
Explanation:
because you know the areais 33.3 so divide 33.3by7.4 and that gives you 4.5 and then multiply 4.5 times 7.4 to give you 33.3 BUT you know you have to divide by 2 to get the area of a triangle so multiply 4.5 times 2 to get you 9.
So 9 times 7.4=66.6/2=33.3
Answer=9