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44 yards. (9*2 +13*2 = 44)
The perimeter is the distance around the outside. A rectangle has two long sides and two short sides. So . . 2 x 13 = 26 2 x 9 = 18 26 + 18 = 44
Perimeter = 4*13 = 52 units of measurment
A square has equal length sides, so each side is 13 in. The perimeter is the distance of the 4 sides added together. The perimeter is: 13 + 13 + 13 + 13; which is 52 in.
The perimeter is a characteristic of a 2-dimensional object. A 12 by 13 by 5 sounds like a 3-dimensional object which would not have a perimeter.