document.write( "Question 122350: Christine has a solar panel with a width of 21 in. To get the proper inclination for her climate, she needs a right triangle support frame that has one leg twice as long as the other. To the nearest tenth of an inch, what dimensions should the frame have?
\n" ); document.write( "Hint: Do not round your answer(s) until the very end.\r
\n" ); document.write( "\n" ); document.write( "Shorter side=?
\n" ); document.write( "Longer side=?
\n" ); document.write( "

Algebra.Com's Answer #89842 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
ASSUMING THE 21 INCHES IS THE HYPOTENUSE.
\n" ); document.write( "X^2+(2X)^2=21^2
\n" ); document.write( "X^2+4X^2=21^2
\n" ); document.write( "5X^2=441
\n" ); document.write( "X^2=441/5
\n" ); document.write( "X^2=88.2
\n" ); document.write( "X=SQRT88.2
\n" ); document.write( "X=9.3915 INCHES FOR THE SHORT LEG.
\n" ); document.write( "2X=2*9.3915=18.783 INCHES FOR THE LONG LEG.
\n" ); document.write( "PROOF
\n" ); document.write( "9.3915^2+18.783^2=21^2
\n" ); document.write( "88.2+352.8=441
\n" ); document.write( "441=441
\n" ); document.write( "
\n" ); document.write( "
\n" );