10. The United States grew by 390,143 square miles in 1845, by 285,680 square miles in 1846, and by 529,017 square miles in 1848. The United States added another 586,412 square miles in 1867. The second least growth came from the annexation of Texas.

In what year did the United States annex Texas?



Answer :

To determine the year in which the United States annexed Texas, we need to identify the second least growth in square miles and match it with the corresponding year.

Here are the stated figures for growth in specific years:

- 390,143 square miles in 1845
- 285,680 square miles in 1846
- 529,017 square miles in 1848
- 586,412 square miles in 1867

### Step-by-Step Solution:

1. List the growth figures with their respective years:
- 1845: 390,143 square miles
- 1846: 285,680 square miles
- 1848: 529,017 square miles
- 1867: 586,412 square miles

2. Identify the growth values:
- 390,143
- 285,680
- 529,017
- 586,412

3. Sort these growth values in ascending order to find the second least growth:
- 285,680 (least)
- 390,143 (second least)
- 529,017
- 586,412

4. Match the second least growth value (390,143) with its corresponding year:
- The year corresponding to the second least growth of 390,143 square miles is 1845.

### Conclusion:
The United States annexed Texas in the year 1845.