Question 1115462
{{{(r*1)^2+((r+2)*1)^2=10^2}}}

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{{{r^2+r^2+4r+4=100}}}
{{{2r^2+4r-96=0}}}
{{{r^2+2r-48=0}}}
{{{(r+6)(r-8)=0}}}


{{{highlight(r=8)}}}-----slow boat

{{{r+2=highlight(10)}}}-----fast boat