Question

The circumference of the earth at the equator or along any line of longitude is approximately:
a. 25,000 km
b. 40,000 km
c. 36,000 km
d. 46,000 km.

Answer 1

The circumference of the Earth at the equator or along any line of longitude is approximately 40,008 km; hence the answer is option b.

If you drive a car around the Earth’s equator, it would take you about 15 days at 100 km/hour speed, to complete that journey.

Every longitude is equal in length because each of them joins the North and South Poles; therefore, every line of longitude is half of the circumference of the Earth.