[" A house subtends a right angle at the window of an "],[" opposite house and the angle of elevation of the window "],[" from the bottom of the first house is "60^(@)." If the distance "],[" between the two houses be "6m" ,then the height of the "],[" first house is "],[[" (a) "6sqrt(3)m," (b) "8sqrt(3)m],[" (c) "4sqrt(3)m," (d) None of these "],[" The angle of elevation "," (d) None of these "]]