Question 333453
Let the length of the rectangle = {{{a}}}
Let the width of the rectangle = {{{b}}}
The circumference, {{{C = 2a + 2b}}}
given:
{{{C = 500}}} ft
{{{500 = 2a + 2b}}}
{{{2b = 500 - 2a}}}
{{{b = 250 - a}}}
{{{A = a*b}}}
{{{A = a*(250 - a)}}}
{{{A = -a^2 + 250a}}}
This is the quadratic equation- you could pick your
own letters instead of {{{a}}} and {{{b}}}