Please help me find the surface area of this rectangular prism (around the world 2x)

If m 17 27 90 63 ** picture is attached

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal,mutualistic,or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp

If chord ab is congruent to chord cd, then what must be true about ef and eg?