Answer:
The answer is option 3.
Step-by-step explanation:
First we have to find the area of both rectangle and triangle :
Rectangle,

Let base = 9,
Let height = 3,

Triangle,

Let base = 3,
Let height = 3,

Lastly, in order to find the shaded region you have to substract the area of triangle from the area of rectangle :

60, because 120 is bigger than a right angle, and the picture shows that it is definitely smaller than a right angle.
Product property is the answer
8 1/9 because 9 times 8 is 72 and 73-72=1 so 8 1/9