document.write( "Question 310256: television sets. what does it mean to refer to a 20-inch tv set or a 25-inch tv set. such units refer to the diagonal of the screen. a 30 inch tv set also has a width of 24-inches. what is its height. \n" ); document.write( "
Algebra.Com's Answer #221851 by nerdybill(7384)\"\" \"About 
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television sets. what does it mean to refer to a 20-inch tv set or a 25-inch tv set. such units refer to the diagonal of the screen. a 30 inch tv set also has a width of 24-inches. what is its height.
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\n" ); document.write( "Let h = height
\n" ); document.write( "then
\n" ); document.write( "h^2 + 24^2 = 30^2
\n" ); document.write( "h^2 = 30^2 - 24^2
\n" ); document.write( "h^2 = 900 - 576
\n" ); document.write( "h^2 = 324
\n" ); document.write( "h = 18 inches
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