Multiple Choice Questions on Consider the lines y 3x y 6x and y 9 What is the area of the triangle formed by these lines ........ for NDA Exam Preparation

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Multiple Choice Questions

Consider the lines y 3x y 6x and y 9 What is the area of the triangle formed by these lines ........

Mathematics (NDA) Coordinate Geometry
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    Consider the lines y = 3x, y = 6x and y = 9

     What is the area of the triangle formed by these lines?

    27/4 sq units

    Correct Answer

    27/2 sq units

    Incorrect Answer

    19/4 sq units

    Incorrect Answer

    19/2 sq units

    Incorrect Answer
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    Explanation:

    Given, lines are
    y = 3x ...(i)
    y = 6x ...(ii)
    and y = 9 ...(iii)

    On solving Eqs. (i) and (iii), we get x = 3, y = 9
    Coordinates of A = (3, 9)
    On solving Eqs. (ii) and (iii), we get x = 3/2, y = 9
    Coordinates of B =(3/2,9)

     

    By: Munesh Kumari
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