Difference between revisions of "1995 AIME Problems/Problem 1"

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Square <math>\displaystyle S_{1}</math> is <math>1\times 1.</math>  For <math>i\ge 1,</math> the lengths of the sides of square <math>\displaystyle S_{i+1}</math> are half the lengths of the sides of square <math>\displaystyle S_{i},</math> two adjacent sides of square <math>\displaystyle S_{i}</math> are perpendicular bisectors of two adjacent sides of square <math>\displaystyle S_{i+1},</math> and the other two sides of square <math>\displaystyle S_{i+1},</math> are the perpendicular bisectors of two adjacent sides of square <math>\displaystyle S_{i+2}.</math>  The total area enclosed by at least one of <math>\displaystyle S_{1}, S_{2}, S_{3}, S_{4}, S_{5}</math> can be written in the form <math>\displaystyle m/n,</math> where <math>\displaystyle m</math> and <math>\displaystyle n</math> are relatively prime positive integers.  Find <math>\displaystyle m-n.</math>
 
Square <math>\displaystyle S_{1}</math> is <math>1\times 1.</math>  For <math>i\ge 1,</math> the lengths of the sides of square <math>\displaystyle S_{i+1}</math> are half the lengths of the sides of square <math>\displaystyle S_{i},</math> two adjacent sides of square <math>\displaystyle S_{i}</math> are perpendicular bisectors of two adjacent sides of square <math>\displaystyle S_{i+1},</math> and the other two sides of square <math>\displaystyle S_{i+1},</math> are the perpendicular bisectors of two adjacent sides of square <math>\displaystyle S_{i+2}.</math>  The total area enclosed by at least one of <math>\displaystyle S_{1}, S_{2}, S_{3}, S_{4}, S_{5}</math> can be written in the form <math>\displaystyle m/n,</math> where <math>\displaystyle m</math> and <math>\displaystyle n</math> are relatively prime positive integers.  Find <math>\displaystyle m-n.</math>
  
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[[Image:AIME 1995 Problem 1.png]]
 
== Solution ==
 
== Solution ==
  
 
== See also ==
 
== See also ==
 
* [[1995 AIME Problems]]
 
* [[1995 AIME Problems]]

Revision as of 21:49, 21 January 2007

Problem

Square $\displaystyle S_{1}$ is $1\times 1.$ For $i\ge 1,$ the lengths of the sides of square $\displaystyle S_{i+1}$ are half the lengths of the sides of square $\displaystyle S_{i},$ two adjacent sides of square $\displaystyle S_{i}$ are perpendicular bisectors of two adjacent sides of square $\displaystyle S_{i+1},$ and the other two sides of square $\displaystyle S_{i+1},$ are the perpendicular bisectors of two adjacent sides of square $\displaystyle S_{i+2}.$ The total area enclosed by at least one of $\displaystyle S_{1}, S_{2}, S_{3}, S_{4}, S_{5}$ can be written in the form $\displaystyle m/n,$ where $\displaystyle m$ and $\displaystyle n$ are relatively prime positive integers. Find $\displaystyle m-n.$

AIME 1995 Problem 1.png

Solution

See also