Brianna made a quilt for her cousin's doll. The quilt had a 7 × 7 array of different color square patches. If each patch is 3

Question

1
2
in long, what is the area of the whole quilt

Answer 1

since 3 1/2 = 7/2, the area is
7*7*(7/2)^2 = 2401/4 in^2