Question 384036
the circumference of the Earth is 40,000 km
(the original definition of a meter was the distance from the equator to the pole, divided by 10,000,000)


2.54 cm = 1 in.


4E9 cm * (1 in / 2.54 cm) * (1 ft / 12 in) = circumference in feet


divide the circumference by ___ 360º * (60 min / º) * (60 sec / min)