document.write( "Question 1074003: A projector is 40 m from the middle of a screen which is 15 m high. How much further away from the projector is the top edge than the centre of the screen? \n" ); document.write( "
Algebra.Com's Answer #688760 by josgarithmetic(39623)\"\" \"About 
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From middle of the screen to top of the screen is \"15%2F2\" meters.\r
\n" ); document.write( "\n" ); document.write( "\"h%5E2=%2815%2F2%29%5E2%2B40%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"h=sqrt%28%2815%2F2%29%5E2%2B40%5E2%29\"\r
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\n" ); document.write( "\n" ); document.write( "Question asks for \"h-40\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%287.5%5E2%2B40%5E2%29-40\"\r
\n" ); document.write( "\n" ); document.write( "\"40.697-40\"\r
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\n" ); document.write( "\n" ); document.write( "\"0.7\", about 0.7 meters difference
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