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    Question

    A ladder leaning against a wall makes an angle of 60°

    with the ground. If the ladder is 10 meters long, how high up the wall does it reach?
    A 10√3 m Correct Answer Incorrect Answer
    B 5√3 m Correct Answer Incorrect Answer
    C 5 m Correct Answer Incorrect Answer
    D 18 m Correct Answer Incorrect Answer

    Solution

    ATQ, Let the height the ladder reaches be h. Using sine function: sin 60° = h / 10 h = 10 * sin 60° = 10 * √3/2 = 5√3 meters

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