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    (Original post by creativebuzz)
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    What is your question? The minimum distance?

    Calculate the distance of the centre of circle from the line
    Subtract from this the radius
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    (Original post by creativebuzz)
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    with just C2 knowledge


    FIRST DRAW A DIAGRAM TO FOLLOW THE PLAN

    • find gradient of the line
    • determine equation of a perpendicular to this line which passes through the centre of the circle.
    • solve equations of the two lines simultaneously to find point of intersection.
    • find the distance of that point to the centre of the circle
    • subtract radius
    • ....
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    (Original post by TeeEm)
    with just C2 knowledge


    FIRST DRAW A DIAGRAM TO FOLLOW THE PLAN

    • find gradient of the line
    • determine equation of a perpendicular to this line which passes through the centre of the circle.
    • solve equations of the two lines simultaneously to find point of intersection.
    • find the distance of that point to the centre of the circle
    • subtract radius
    • ....
    Ah thank you, I managed to get the answer! But what I still don't seem to understand is why was the reasoning behind finding the perpendicular? (I'm not arguing, I just really want to understand the reasoning behind everything)!
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    (Original post by creativebuzz)
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    Just draw yourself a random line and a random dot and see how you'd find the minimum distance between the two.

    Does that give you any clues.
 
 
 
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