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Two boys are on opposite sides of a tower of 80 meters height. They measures the angles of elevation of the top of tower as $$45^\circ$$ and $$60^\circ$$ respectively. The distance between two boys(in meters) is
let the boys are standing in the triangle $$\triangleABC$$Β here D is the point in between ABΒ
so the height is CD = 80 m and $$\angleCAD$$ = 45 andΒ Β Β $$\angleCBD$$ = 60Β Β
so we can say thatΒ
tan45 = CD\AD = 80\ADΒ $$\Rightarrow$$ AD = 80Β
tan60 = CD\BD = 80\BD $$\Rightarrow$$ BD = 80\$$\sqrt{3}$$
so that the total ditance is AD + BD = 80 +Β 80\$$\sqrt{3}$$
$$\frac{80}{3}(3+\sqrt{3})$$Β Β answerΒ
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