Question

The tops of two poles of height 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 1

Let be the length of wire_.

Given that wire makes an angle

Now, ,

Here, we have to find length of wire.

So we use trigonometric ratios.

In a triangle,

Hence the correct option is .