Answer :
Let's find out:
P = 2(l + w)
9 * 6
P = 2(9 + 6)
P = 2(15)
P = 30
26 * 2
P = 2(26 + 2)
P = 2(28)
P = 56
54 * 1
P = 2(54 + 1)
P = 2(55)
P = 110
18 * 3
P = 2(18 + 3)
P = 2(21)
P = 42
Therefore, the 9 x 6 rectangle has the smallest perimeter.
P = 2(l + w)
9 * 6
P = 2(9 + 6)
P = 2(15)
P = 30
26 * 2
P = 2(26 + 2)
P = 2(28)
P = 56
54 * 1
P = 2(54 + 1)
P = 2(55)
P = 110
18 * 3
P = 2(18 + 3)
P = 2(21)
P = 42
Therefore, the 9 x 6 rectangle has the smallest perimeter.