document.write( "Question 328087: An ellipse with center at the origin and the horizontal major axis is to fit snugly insidde a rectangle that has its longer sides horzontal. The area of the rectangle is 12 square units, and the perimeter is 14 units find an equation for the ellipse. \n" ); document.write( "
Algebra.Com's Answer #235014 by galactus(183)![]() ![]() You can put this solution on YOUR website! The rectangle has perimeter 2x+2y=14\r \n" ); document.write( "\n" ); document.write( "and area xy=12\r \n" ); document.write( "\n" ); document.write( "Solve area for y and sub into perimeter, y=12/x\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x is the longer one, so x=4 and y=3\r \n" ); document.write( "\n" ); document.write( "This means the semi-major axis has length 2 and the semi-minor axis has length \n" ); document.write( "3/2\r \n" ); document.write( "\n" ); document.write( "So, the ellipse equation is \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |