ATPL: Given:value for the flattening of the Earth is 1/298.Earth's semi-major axis, as measured at the equator, equals 6378.4 km. What is the semi-minor axis (km) of the earth at the axis of the poles?

Explanation: Given:value for the flattening of the Earth is 1/298.Earth's semi-major axis, as measured at the equator, equals 6378.4 km. What is the semi-minor axis (km) of the earth at the axis of the poles?