Calculate the extent of Africa in degrees and kilometers, from north to south, along a meridian of 20 degrees east longitude.

In order to calculate the length of Africa along the 20 meridian, you must first find these points on the map.

1 coordinate – 32о N 20о east longitude;

2 coordinate – 34о S lat. 20о east longitude;

The extent of Africa in degrees along the 20th meridian is 32 + 34 = 66o;

One degree of the meridian is 111 kilometers long.

Find the length:

66 * 111 = 7326 kilometers.

Answer: The length of Africa along the 20th meridian is 7326 kilometers.