<h3>Sorry, But I don't know this language!</h3>
They did not have the materials
Industrialism had widened the technological gap between Africa and the West and industrialism led for a greater need for a secure and steady supply of raw materials, which Africa had in abundance, and for an increased desire for markets for the abundance of goods supplied.
13.99 kilometers is the diameter.
Divide the circumference (43.96) by 2(pi), which should give you a radius of 6.99. You should then proceed to multiplying that by 2, since radius is half of the diameter, giving you 13.99.
