85. The area of square ABCD is 4 times larger than the area of square WXYZ. If the area of square WXYZ is 9, what is the difference between the length of a side of square ABCD and the length of a side of square WXYZ?
A. 3
B. 4
C. 6
D. 12

Respuesta :

Answer:

A

Step-by-step explanation:

3x3=9 3x9=36 6x6=36

Answer:

A

Step-by-step explanation:

Area of square WXYZ is 9. ABCD has 4 times larger area which means ABCD has area of 36. Area of a square is the side length squared. Square root of 9 is 3 so WXYZ has side length of 3. ABCD has side length of 6 by the same logic. The difference between 6 and 3 is 3 so the answer is A.