Q. 44.1( 17 Votes )

An electric pole is 10 m high. A steel wire tied to top of the pole is affixed at a point on the ground to keep the pole up right. If the wire makes an angle of 45° with the horizontal through the foot of the pole, find the length of the wire.

Answer :


Let the length of the wire = l (m)


In ∆ABC,


Sin 45° =


=


l 10√2 m


10x1.41


14.1 m


Therefore Length of wire is 14.1 m


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