Above are two different models of the same rectangle. If the area of the model on the left is 81 sq cm, what is the area of the model on the right?
A.
75 sq cm
B.
27 sq cm
C.
9 sq cm
D.
243 sq cm
C. 9 sq cm
Since the models are of the same rectangle, their areas are proportional.
If the area of the model on the left is 81 sq cm, then the area of the model on the right would be (9/81)*81 = 9 sq cm.