The height of a conical tent is 9m. A vertical pole of 6m height is placed 4 m away from its centre such that it touches the surface. Find the slant height of the tent from the base to the point where the pole touches it?
Since, triangle’s are similar, AD/AB = DE/BC 3/9 = 4/BC BC = 12m In△ ABC, AC = √(AB2 + BC2)) = √(92 + 122) = √(81+144) = √225 = 15 m In△ ADE, AE = √(AD2+ DE2) = √(32+ 42) = √(9+16) = √25 = 5 m i.e., CE = AC – AE = 15 – 5 = 10 m
In each of the following questions, three out of four words given have the same meaning. Mark the number as your answer which is different in meaning ...
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Choose the word that means the same as the given word.
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reliable
