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Question 84
A 10 metre, long ladder is placed against a wall. It is inclined at angle of 30C to the ground. The distance of the foot of the ladder from the wall is
Solution
This can be represented in diagrammatic form as,
Hence, by 30-60-90 theorem
Side opposite to 60 degree angle = $$\sqrt{3}$$/2 *hypotenuse = $$\sqrt{3}$$/2 *10 = 8.66 m
Therefore, the correct option is option C.
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