Answer:
P(erimeter) = 2L(ength) + 2W(idth).
But it is given that L = 2W+2.
Use this fact in the formula for the perimeter.
P = 2(2W+2) + 2W
P = 4W + 4 + 2W = 6W + 4.
P given as 22M, therefore
22 = 6W + 4
Subtract 4 from both sides to get 18 = 6W
Divide both sides by 6 to get W(idth) = 18/6 = 3M
L = 2W + 2 = 2*3 + 2 = 8M
P = 2*8 + 2*3 = 16+6 = 22
