In a state legislature the elected representatives include 19 Democrats, 12 Republicans, and 5 Independents. What's the probability that the randomly selected group of legislators would end up being 6 members of the same party?

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