Ivan has a piece of lumber 104 inches long. he is sawing it into 12-inch lengths to make fence posts. he says he can get about 9 fence posts out of the board.

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.