How many square miles are in 1.8 square kilometers based on the conversion rate provided?

To determine how many square miles are in 1.8 square kilometers, one can use the conversion factor between square kilometers and square miles. The conversion rate indicates that 1 square kilometer is approximately equal to 0.3861 square miles.

To convert square kilometers to square miles, you multiply the number of square kilometers by the conversion rate:

1.8 square kilometers * 0.3861 square miles/square kilometer = approximately 0.693 square miles.

When rounded to two decimal places, this value aligns closely with 0.69 square miles, indicating that choice B is indeed the correct answer.

This demonstrates how using the correct conversion factor is essential in obtaining accurate results in unit conversions.