Whats y is two if one angle is 79 and the other one is 37

If you're asking what is the measure of ∠y in the triangle if other angles are 79º and 37º, then this is the 180-79-37=y=64º

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