Give 4 integers whose product is less than zero and whose sum is -28

5 integers whose product is less than zero and whose sum is 17 ... product, so just use one -1, and pick 4 positive integers that have sum 18.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's