The lower window of a house is at a height of 2m above the ground and its upper window is 4m vertically above the lower window. At certain instant the angles of elevation of a balloon from these windows are observed to be 60 degree and 30 degree respectively. Find the height of the balloon above the ground?

B is the lower window, and C is the upper window AB = FG = 2m, BC = EF = 4m , EC = FB,Let DE = x m

  • 84

ANS: 8 m

  • -15
What are you looking for?