Q. 85.0( 3 Votes )

The tops of two poles of height of 20 m and 14 m are connected by a wire. If the wire makes an angle of 30° with horizontal, then the length of the wire is
A. 12 m

B. 10 m

C. 8 m

D. 6 m

Answer :


Here ED = 14m and AC = 20 m are two poles


AB = 20 14 = 6 m


Wire AE connects them making angle with horizontal of 30°


We have to find AE which is length of wire


Sin 30° =


=


AE = 12 m

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