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I JUST NEED A DIAGRAM
From the top of a tower the angle of depression of an object on the horizontal ground is found to be 60degree. On descending 20 m vertically downwards from the top of the tower, the angle of depression of the object is found to be 30degree Find the height of the tower.
 one year ago
 one year ago
I JUST NEED A DIAGRAM From the top of a tower the angle of depression of an object on the horizontal ground is found to be 60degree. On descending 20 m vertically downwards from the top of the tower, the angle of depression of the object is found to be 30degree Find the height of the tower.
 one year ago
 one year ago

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soty2013Best ResponseYou've already chosen the best response.2
dw:1359816002489:dw
 one year ago

soty2013Best ResponseYou've already chosen the best response.2
dw:1359816427851:dw @phi
 one year ago

phiBest ResponseYou've already chosen the best response.1
because the ground is parallel to the horizontal lines, we can say the angle of elevation = angle of depression dw:1359818247074:dw
 one year ago

phiBest ResponseYou've already chosen the best response.1
now you have two equations and 2 unknowns tan 60 = x/y tan 30 = (x20)/y
 one year ago
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