Question
Rohit is climbing on a 30 metres long rope, which is
tied from the top of a vertical pole to the ground. Find the height of the pole if the angle made by the rope with the ground is 30o.Solution
AB = length of the pole And, AC = length of the rope = 30 metres In right triangle ABC; sin30o = AB/AC Or, (1/2) = AB/30 So, AB = 30/2 = 15 metres
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