A rope travels around the Earth's equator The circumference of the Earth is 25000 miles How far off the Earth would the rope be if you added 10 feet to it?

Answer 1

25010

Answer 2

You do not need to know the actual radius or circumference.

All you need to do is take the INCREASE in circumference and divide by 2*Pi.

Therefore 10 feet / 2*Pi =1.591549 feet which will be the distance the rope will be off the surface all the way round any size sphere.

Answer 3

Adding 10 feet to the rope's length would mean an increase of 20π ≈ 62.83 feet in circumference. Dividing this by Earth's circumference gives approximately 0.0025, so the rope would be 0.0025 times its length off the surface of the Earth, which is approximately 62.5 feet.