<PRE><B>Question 1123807</B>
x, uniform width border


Picture AND Border total area,  {{{(50+2x)(70+2x)}}}



 area of the frame is the same as the area of the portrait, what is the approximate width of the frame.


{{{(50+2x)(70+2x)=2*50*70}}}

-

{{{2*2(25+x)(35+x)=2*2*25*2*35}}}

{{{(25+x)(35+x)=2*25*35}}}-------continue to solve any way you want.

{{{x^2+60x+25*35-2*25*35=0}}}
{{{x^2+60x-25*35=0}}}

{{{x=(-60+sqrt(3600+4*875))/2}}}




{{{x=12.13}}}, approximately</PRE>