Are all edges of a rectangular prism rectangle?

An edge is like, the outline, bro.

If cheese is $4.40 per kilogram, you should pay .88

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