The angle of elevation of the top of a house from the bottom of atower 160m high is 26 degree.from the top of the tower the angle of elevation is 24.what is the height of the house if the tower and the house are 50m apart?.

I suspect that you have somehow mangled the question, since the height of the tower makes no difference. The height of the house (h) is found via

h/50 = tan26°