Art of Problem Solving

2006 iTest Problems/Problem U7: Difference between revisions

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==Problem==
==Problem==


Let  <math>T  =  TNFTPP</math>. Triangle  <math>ABC</math> has integer side lengths, including  <math>BC  =  100T  -  4</math>, and a right angle,  <math>\angle ABC</math>. Let  <math>r</math> and  <math>s</math> denote the inradius and semiperimeter of  <math>ABC</math> respectively. Find the perimeter of the triangle ABC which minimizes  <math>\frac{s}{r}</math>.
Let  <math>T  =  TNFTPP</math>. Triangle  <math>ABC</math> has integer side lengths, including  <math>BC  =  696</math>, and a right angle,  <math>\angle ABC</math>. Let  <math>r</math> and  <math>s</math> denote the inradius and semiperimeter of  <math>ABC</math> respectively. Find the perimeter of the triangle ABC which minimizes  <math>\frac{s}{r}</math>.


==Solution==
==Solution==
First, label the other leg <math>x</math> and the hypotenuse <math>y</math>. To minimize
First, label the other leg <math>x</math> and the hypotenuse <math>y</math>. To minimize

Revision as of 20:37, 17 November 2019

Problem

Let $T  =  TNFTPP$. Triangle $ABC$ has integer side lengths, including $BC  =  696$, and a right angle, $\angle ABC$. Let $r$ and $s$ denote the inradius and semiperimeter of $ABC$ respectively. Find the perimeter of the triangle ABC which minimizes $\frac{s}{r}$.

Solution

First, label the other leg $x$ and the hypotenuse $y$. To minimize