What type(s) of angles are sometimes congruent? what needs to be true about these
angles in order for them to be congruent?

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

Bis your answer. it only holds the decimal numerals