document.write( "Question 1186123: The angular elevation of a tower CD at a place A due south of it is 60°; and at a place B due west of A, the elevation is 30°. If AB = 3 km, what is the height of the tower? \n" ); document.write( "
Algebra.Com's Answer #849401 by ikleyn(52778)\"\" \"About 
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