15. An electrician has to repair an electric fault on a pole of height 5m. she needs to reach a point 1.3m below the top of the pole to undertake the repair work. What should be the length of th
ladder that she should use which, when inclined at an angle of 60° to the horizontal, woul
enable her to reach the required position? Also, how far from the foot of the pole should she
place the foot of the ladder? (You may take √3- 1.732)
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