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    A ladder makes an angle of 60° with the ground and its bottom is 3.7 m away from the wall. Find its length.
    Question

    A ladder makes an angle of 60° with the ground and its bottom is 3.7 m away from the wall. Find its length.

    A.

    7.4 m

    B.

    4.8 m

    C.

    3.7 m

    D.

    6.5 m

    Correct option is A

    Given:

    Base distance = 3.7 m

    Angle = 60°

    Formula:

    cos 60° = base ÷ length of ladder

    Solution:

    cos 60° = 1/2

    1/2 = 3.7 / L

    L = 3.7 × 2 = 7.4 m

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