From the top of a building 60metre high the angles of depression of the top and bottom of a tower are 30 degree and 60 degree respectively.the height of the tower is: (a)40m(b)30m(c)20m(d)50m(e)20root3m

• a) distance btw two towers=20root3
  making use of angle of depression of top get h=40m
• 13 years agoHelpfull: Yes(5) No(1)
• use tan 60 to get distance between toer and building
  and tan 30 to get the height of building above the tower.
  then subtract it to get tower height
• 13 years agoHelpfull: Yes(2) No(1)