SAT Math Multiple Choice Practice Question 419: Answer and Explanation
In the figure above, the perimeter of square A is the perimeter of square B, and the perimeter of square B is the perimeter of square C. If the area of square A is 16, what is the area of square C ?
Correct Answer: E
E If the area of square A is 16, the length of each side is 4, and the perimeter is 16. You are told that this is of B's perimeter, which you can calculate:
Now that you know the perimeter of B, you can calculate the perimeter of C:
If the perimeter of C is 36, each side is 9, and the area of C is 92, or 81. If you chose B, you need to read the question more carefully.