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If you are d metres away from the base of an object, and the top of the object is at an angle x from the horizontal, then the height of that object is given by:h = d*tan(x).


If you want to be more accurate, or if x is small, you should add the height of your eyes from the ground to the answer obtained from the above formula..

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Q: How do you do trigonometry ratio to calculate the height?
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