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The angle of elevation of a ladder leaning against a wall is 60º and the..............What is the length of the ladder ?

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The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 4.6 m away from the wall.
What is the length of the ladder ?

posted Dec 17, 2015 by Nikita Sehgal

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1 Answer

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Best answer

Let AB is a vertical wall and BC is a ladder
<ACB=60 degree ,
Distance of ladder from wall=AC=4.6 m
AC/BC=cos 60 degree=1/2
AC/BC=1/2
BC=2*AC
BC=2*4.6
BC=9.2 m
Ans is 9.2 m

answer Dec 17, 2015 by Jaikumar Bhatia



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