Make a tree diagram to show the sample space. Then give the total number of outcomes of choosing an outfit from a green shirt, blue shirt, or a red shirt, and black pants or blue pants.

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

8doors on the second floor