What is the length of a degree of longitude at the equator and at the poles?
A)111 km; 111 km.
B)0 km; 111 km.
C)111 km; 0 km.
D)0 km; 56 km.
E)56 km; 0 km.

Question

Quizplus · Accepted Answer

The length of a degree of longitude at the equator is about 111 km because the Earth's circumference at the equator is approximately 40,075 km and there are 360 degrees of longitude around the Earth, so each degree is about 111 km. At the poles, the Earth's circumference is essentially zero, so a degree of longitude has no length.

What Is the Length of a Degree of Longitude at the Equator