Final answer:
The Louisiana Purchase in 1803 is true to have doubled the size of the United States, adding significant territory and driving westward expansion.
Step-by-step explanation:
The statement that the Louisiana Purchase doubled the territory of the United States is true. The Louisiana Purchase occurred in 1803 and was a significant event where the U.S. acquired approximately 828,000 square miles of land from France. This acquisition substantially increased the size of the United States and played a crucial role in the westward expansion of the nation.
The statement is true. When a buyer purchases a property, they may assume that the size of the property is guaranteed and accurate. However, the purchase contract may place the responsibility on the buyer to verify the property size.