Question

IF YOU WRAP A RUBBER BAND AROUND A BALL 10CM IN DIAMETER ,THEN LIFT THE BAND 1CM OFF THE BALL ALL THE WAY AROUNT, THE BAND WILL BE 6.28CM LONGER.IF YOU WRAP A RUBBER BAND AROUND THE EARTH(6,378KM) AND AGAIN LIFT IT UP 1CM ALL THE WAY AROUND ,HOW MUCH LONGER IS THE RUBBER BAND?

Answer 1

You can answer this by setting up a proportion using the information given.

You can use a proportion because the distance around is a one dimensional measurement.

The answer is 4005.384 km longer.

Please see the attached pic for the work in solving the proportion.