The dimensions of square A are three times the dimensions of square B. The area of square A is 324 cm2. What is the area of square B?

Answer 1

324 x 3^2 = 2916 cm^2 for square B

324 = 81 x 4 or 36 x 9

if A were 36 x 9, then B would be 108 x 27 = 2916

if A were 81 x 4, then B would be 243 x 12 = 2916

no matter what the length and width of A, if you multiply each by 3, it's the same as multiplying the area by 3^2 = 9