Question

• As the earth is slightly flattened at the poles, the linear distance
of a degree of latitude at the pole is a little longer than that at the
equator.​

Answer 1

Explanation:

As the earth is slightly flattened at the poles, the linear distance of a degree of latitude at the pole is a little longer than that at the equator. For example at the equator (0°) it is 68.704 miles, at 45° it is 69.054 miles and at the poles it is 69.407 miles. The average is taken as 69 miles (111km).