document.write( "Question 1020222: A luminaire is mounted 2.8m above the floor and it is required to calculate the illuminance due to the luminaire at a point on the floor that is 1.5m from the point directly beneath the luminaire.\r
\n" ); document.write( "\n" ); document.write( "What is the hypotenuse of the triangle formed by the luminaire and the two points on the floor?\r
\n" ); document.write( "\n" ); document.write( "and what are the two angles formed by the above triangle that are not right angles?
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Algebra.Com's Answer #636139 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "Hypotenuse^2 = 2.8^2 + 1.5^2
\n" ); document.write( "Hypotenuse^2 = 10.09
\n" ); document.write( "Hypotenuse = √10.09
\n" ); document.write( "Hypotenuse = 3.2 m
\n" ); document.write( "Angles:
\n" ); document.write( "tan(x) = 1.5/2.8
\n" ); document.write( "x = 28.2 degrees
\n" ); document.write( "tan(x) = 2.8/1.5
\n" ); document.write( "x = 61.8 degrees
\n" ); document.write( "Hope this helps :-)
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