An electrician has to repair an electric falut on a pole of height 4 metres, He needs to reach a point 1 metre below the top of pole to undertake the repair work. What should be the length of the ladder that the should use, which when inclined at an angle of 60∘ to the horizontal would enable him to reach the required position ? [Use √3=1.732.]

An electrician has to repair an electric falut on a pole of height 4 m

1.	An electrician has to repair an electric falut on a pole of height 4 metres, He needs to reach a point 1 metre below the top of pole to undertake the repair work. What should be the length of the ladder that the should use, which when inclined at an angle of 60∘ to the horizontal would enable him to reach the required position ? [Use √3=1.732.]
Answer» An electrician has to repair an electric falut on a pole of height 4 metres, He needs to reach a point 1 metre below the top of pole to undertake the repair work. What should be the length of the ladder that the should use, which when inclined at an angle of $60^{\circ}$ to the horizontal would enable him to reach the required position ? [Use $\sqrt{3} = 1.732.$ ]