document.write( "Question 936186: an aircraft is vertically above a point which is 10 km west and 15 km north of a control tower . if the aircraft is 4000m above the ground ,how far is it from the control tower ? \n" ); document.write( "
Algebra.Com's Answer #569663 by Alan3354(69443)\"\" \"About 
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an aircraft is vertically above a point which is 10 km west and 15 km north of a control tower . if the aircraft is 4000m above the ground ,how far is it from the control tower ?
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\n" ); document.write( "4000m = 4 km
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\n" ); document.write( "d = sqrt(10^2 + 15^2 + 4^2) = sqrt(341) km
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