A man has to clean a window at a height of 5 m on a building. He needs to reach a point 1.3m below the window to clean it. What should be the length of the ladder that he should use which, when inclined at an angle of 60^o to the horizontal, would enable him to reach the required position?

2.46

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2.46√3

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2.46/√3

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2√3

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Solution

The correct option is B
2.46√3

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A Technician has to repair a light on a pole of height 10 m. She needs to reach a point 1 m below the top of the pole to undertake the repair work. What should be the length of the ladder that she should use which, when inclined at an angle of $60^{\circ}$ to the ground, would enable her to reach the required position? Also, how far from the foot of the pole should she place the foot of the ladder?

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A man has to clean a window at a height of 5 m on a building. He needs to reach a point 1.3m below the window to clean it. What should be the length of the ladder that he should use which, when inclined at an angle of 60o to the horizontal, would enable him to reach the required position?

The correct option is B 2.46√3

A man has to clean a window at a height of 5 m on a building. He needs to reach a point 1.3m below the window to clean it. What should be the length of the ladder that he should use which, when inclined at an angle of 60^o to the horizontal, would enable him to reach the required position?

The correct option is B
2.46√3