The length of the Earth’s equator is about 40,000 km, and the Earth’s diameter is 8/25 the length of the equator. What is the diameter of the Earth?

Answer 1

Since the length of the Earth's equator is 40,000 km and the diameter is 8/25 the length OF the equator, OF indicates that you would multiply 40,000 by 8/25, which gives you a product of 12,800, or, the diameter of the Earth which is 12,800 km.