If the three angles of a triangle are not congruent, then the longest side of the triangle is

The sentence is filled with verbal irony. If taken literally, the reader would think that the narrator enjoys the beauty of old, blackened brick walls, and is pleased that his window is so close to one as to afford him a good view. Identifying the use of verbal irony in this sentence allows the reader to understand that the narrator is actually disgruntled with the scene his window presents.