What measurement is represented by 1 degree in kilometers?

In geographical terms, one degree of latitude is approximately equal to 111 kilometers. This measurement comes from the fact that the Earth is roughly spherical, and its circumference is about 40,075 kilometers. Since there are 360 degrees of latitude from the North Pole to the South Pole, you can calculate the approximate distance represented by one degree by dividing the total circumference by the number of degrees.

Therefore, when you divide 40,075 km by 360 degrees, you find that each degree of latitude corresponds to about 111 km. This is a crucial calculation in navigation, mapping, and understanding geographic distances, which highlights the significance of the correct answer in this context.