An electrician has to repair an electric fault on a pole of height 4m. She needs to reach a point 1.3 m below the top of the pole to undertake the repair work. What should be the length of the ladder that she should use at an angle of 60° to the horizontal, 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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Solution

3.11 m, 1.50 m

Tips: -

open parentheses Take space square root of 3 equals 1.732 close parentheses

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