document.write( "Question 318879: Television sets: What does it mean to refer to a 20 inch TV set or a 25 inch TV set? Such units refer to diagonal of the screen. A 15 inches TV set also has a width of 12 inches. What is the height of a 15 inch TV in inches? \n" ); document.write( "
Algebra.Com's Answer #228276 by checkley77(12844)\"\" \"About 
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A^2+B^2=C^2
\n" ); document.write( "12^2+B^2=15^2
\n" ); document.write( "144=B^2=225
\n" ); document.write( "B^2=225-144
\n" ); document.write( "B^2=81
\n" ); document.write( "B-SQRT81
\n" ); document.write( "B=9 INCHES FOR THE HEIGHT.
\n" ); document.write( "PROOF:
\n" ); document.write( "12^2+9^2-1562
\n" ); document.write( "144+81+225
\n" ); document.write( "225=225
\n" ); document.write( "
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