Answer:
D
Step-by-step explanation:
To get from the little triangle to the big one, multiply all the litte one's sides by 3.
So the corresponding side to 4 would be 4 * 3 = 12
The area of a right triangle is 1/2 * b * h
b = 9
h = 12
Area = 1/2 * 9 * 12
Area = 54
