A Trillion SquaresDate: 9/9/96 at 18:55:10 From: Anonymous Subject: A trillion squares of graph paper Each piece of graph paper is 1 foot long and has 42 squares to a sheet How far will the graph paper stretch, if it is laid in a line, to make it 1 trillion squares? Date: 9/10/96 at 14:39:59 From: Doctor Ana Subject: Re: A trillion squares of graph paper This is a pretty straightforward problem if you don't let the big numbers bother you. First of all, 1 trillion = 1,000,000,000,000 or 1 * 10^12 in scientific notation. We need to know how many sheets of paper we will be using, and then, because each sheet is 1 foot long, we will know how many feet long the sheets will be. If there are 42 squares per sheet, and we need 1 trillion squares in total, we can just divide 1 trillion by 42 to find out how many sheets we will need. Go ahead and try it on a calculator (you will need to use scientific notation on most calculators). The answer will be pretty big. To put it in perspective, the distance from the earth to the sun is about 500 billion feet = 500,000,000,000 feet. [Dr. Chuck's Note: The distance is 10^12/42 ft * 1/5280 mile/ft = 4,509,379.5 miles. That is a goodly distance!!] -Doctor Ana, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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