Question
A tree stands tall with a height of 54 meters. From a
point 'x' meters away from its base, the angle of elevation to the top of the tree is 60°. Determine the value of 'x'.Solution
In the given figure, let points 'A' and 'B' represent the top of the tree and the base of the tree, respectively and let 'C' represents the point on the ground that is 'x' metres away from the base of the tree (BC = x).In right triangle ABCtan 60o = (AB/x)Or, (54/x) = √3So, x = 54 ÷ √3 = 18√3 metres
If DBC = 18 and GFE = 36, then IJEF =
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