document.write( "Question 262389: the television screen is 20 inches across. If the diagonal measures 25 inches how high is the screen? \n" ); document.write( "
Algebra.Com's Answer #193319 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
This is a Pythagorean theorem question. We have
\n" ); document.write( "a^2 + b^2 = c^2
\n" ); document.write( "20^2 + b^2 = 25^2
\n" ); document.write( "400 + b^2 = 625
\n" ); document.write( "b^2 = 225
\n" ); document.write( "b = 15.
\n" ); document.write( "The height is 15 inches
\n" ); document.write( "
\n" );