Question 155935
We based the measurement on the NEW dimensions:
{{{sides=s+5}}} -----------> each side increased by 5 meters
{{{Area=121m^2}}} ---------> NEW Area
So,
{{{A=(s+5)^2}}}
{{{121=s^2+10s+25}}}
{{{s^2+10s+25-121=0}}}
{{{s^2+10s-96=0}}}
Factor (perfect square):
{{{(s+16)(s-6)=0}}}
2values: {{{s=-16m}}} ----------> DON'T USE
{{{s=6m}}} ---------------------> USE, side of ORIGINAL SQUARE
In doubt? Use the side for the new AREA.
{{{121m^2=(6+5)^2}}}
{{{121m^2=11^2}}}
{{{121m^2=121m^2}}}
Thank you,
Jojo