Which equation could be used to find the value of x?
triangle def where angle e is a right angle. de measures x. df measures 55. angle d measures 49 degrees.
cos 49° = x over 55
cos 49° = 55 over x
sin 49° = x over 55
sin 49° = 55 over x

The correct answer is option C. In the excerpt, Wilde uses the exchange between Gwendolen and Cecily to mock the formal courtship rules of Victorian society. The excerpt belongs to "The importance of Being Ernest", a play written by Oscar Wilde and published in 1898. The whole play has the objective to shed a light on how ridiculous the norms of Victorian societies were, and how they affected the lives of the characters. All these rules made the characters hypocrites and liars, because in order to show the pomposity and morality that was demanded by society, they had to hide facts of their lives.