document.write( "Question 258963: a 19-inch television has a rectangular screen whose diagonal measures 19 inches. If the width of the screen is 15 inches, what is its height to the nearest inch? \r
\n" ); document.write( "\n" ); document.write( "Please show me how you arrived at the answer. I would like to be able to go over this with my 14 year old son in 8th grade. Thank you.
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Algebra.Com's Answer #190657 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
This depends on the Pythagorean theorem about right triangles.
\n" ); document.write( "a and b are the legs (sides of the TV) and c is the diagonal ( the hypotenuse)
\n" ); document.write( "a^2+b^2=c^2
\n" ); document.write( "where a=15 and c=19
\n" ); document.write( "15^2+b^2=19^2
\n" ); document.write( "225+b^2=361
\n" ); document.write( "136=b^2
\n" ); document.write( "11.66=c
\n" ); document.write( "We are not interested in negative roots since we can't have a negative side to the TV
\n" ); document.write( "11.66 is closest to 12 inches.
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