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    A ladder leaning against a wall makes an angle θ with the horizontal ground such that tan θ = 158\frac{15}8815​ If the height of the top of the ladder
    Question

    A ladder leaning against a wall makes an angle θ with the horizontal ground such that tan θ = 158\frac{15}8 If the height of the top of the ladder from the wall is 30 m, find the distance (in m) of the foot of the ladder from the wall.​

    A.

    18

    B.

    16

    C.

    14

    D.

    20

    Correct option is B

    Given:

    tanθ=158\tan \theta = \frac{15}{8}​​

    Height of the top of the ladder from the wall = 30 m

    Formula Used:

    tanθ=height of the ladderdistance from the wall\tan \theta = \frac{\text{height of the ladder}}{\text{distance from the wall}}​​

    Solution: 

    Given tanθ=158\tan \theta = \frac{15}{8}​ and height = 30 m, we can write:

    158=30distance from the wall\frac{15}{8} = \frac{30}{\text{distance from the wall}}​​

    Let the distance from the wall be x. Then:

    158=30x\frac{15}{8} = \frac{30}{x}​​

    15x=8×3015x = 8 \times 30​​

    15x = 240

    x = 24015=16 m\frac{240}{15} = 16 \text{ m}​​

    Thus, the distance of the foot of the ladder from the wall is 16 m.

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