Q. 85.0( 1 Vote )

A ladder makes an

Answer :


Let AC be the length of the ladder.


AB is the distance between the foot of the ladder and the wall = 12m


In ΔABC,


cos 30° =


cos 30° =


From cosine table, cos 30° = 0.8660


0.8660 =


AC = = 13.856 m


The length of the ladder is 13.856 m.


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