How many paperclips would it take to cover the earths surface?
the volume of a sphere is 4/3pi x r^3 differentiate this gives 4 x pi r^2 which is the surface area, the earth’s radius is 6370 km which equals 509.9 million sq km or 5.09943638 ^12 square metres, so all you need to do is work out the number of paper clips in a square km or square metre and multiply it by the relevant answer above to get your answer, you didn’t give the area of a paper clip, and they come in many different sizes, i have one 74mm by 17.5mm.
