The angle of elevation of the top of a tower is 60 degree and the angle of elevation of the top of a chimney from the top of a tower is 60 degree and the angle of elevation of the top of a chimney from the top of a chimney from the top of a tower is 100m.State with the top of a chimney from the top of a tower 40m height of the tower is 40m find the height of the tower
Answers
Answer:
100×60=6000 this is light answer
Given : the angle of elevation of the top of a chimney from the top of a tower is 60 degree and the angle of depression of the foot of the chimney from the top of the tower is 30 degree. if the height of the tower is 40m
To find : height of the chimney
Solution :
Tower height = 40 m
Let say chimney Height = H m
Chimney height above tower = H - 40 m
Horizontal Distance between tower & chimney = D m
angle of elevation of the top of a chimney from the top of a tower is 60°
=> Tan 60 = (H - 40)/ D
=> √3 = (H - 40)/ D
=> D√3 = H - 40
angle of depression of the foot of the chimney from the top of the tower is 30°
=> Tan 30 = 40/D
=> 1/√3 = 40/D
=> D = 40√3
=> D√3 = 120
H - 40 = 120
=> H = 160
Chimney height = 160 m
120 m above tower height
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