document.write( "Question 182195: Television sets. What does it mean to refer to a 20 in TV st or a 25 in TV set? Such units refer to the diagnal of the screen. A 30 in TV set also has a width of 24 inches. What is its height? The hight of a 30 in TV would be?????? Please help me with this. I understand the measurment of the screen but don't understand how to get the height. \n" ); document.write( "
Algebra.Com's Answer #136805 by ankor@dixie-net.com(22740)\"\" \"About 
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Television sets. What does it mean to refer to a 20 in TV st or a 25 in TV set? Such units refer to the diagonal of the screen. A 30 in TV set also has a width of 24 inches. What is its height? The height of a 30 in TV would be??????
\n" ); document.write( ":
\n" ); document.write( "Remember Pythagorus: a^2 + b^2 = c^2
\n" ); document.write( "c = the diagonal, and a and b are the width and height
\n" ); document.write( ":
\n" ); document.write( "A TV with a 30\" screen and a width of 24\"
\n" ); document.write( "a = 24
\n" ); document.write( "c = 30
\n" ); document.write( "b = height
\n" ); document.write( ":
\n" ); document.write( "24^2 + b^2 = 30^2
\n" ); document.write( "576 + b^2 = 900
\n" ); document.write( "b^2 = 900 - 576
\n" ); document.write( "b^2 = 324
\n" ); document.write( "b = \"sqrt%28324%29\"
\n" ); document.write( "b = 18\" is the height of 30\" TV
\n" ); document.write( ":
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