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Math Help - Locus

  1. #1
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    Locus

    What are we missing here?

    A is a fixed point. Describe the locus of the centres of circles which pass through A and have a radius of 5cm.

    Between us we are usually ok with maths - but this has thrown us.

    Thanks.
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by mrsmonopoly View Post
    What are we missing here?

    A is a fixed point. Describe the locus of the centres of circles which pass through A and have a radius of 5cm.

    Between us we are usually ok with maths - but this has thrown us.

    Thanks.
    It looks like to me that the locus of centers as you describe would be a circle with center A and a radius of 5 cm.
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  3. #3
    Like a stone-audioslave ADARSH's Avatar
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    Smile ....

    Hello
    A is a fixed point. Describe the locus of the centres of circles which pass through A and have a radius of 5cm.

    locus is a set of points which satisfies given condition
    here there can be infinitely many circles around A with radius 5cm
    but when we take the complete set of their centres we get a circle
    of radius 5cm with A as centre
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  4. #4
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    So if we have to draw the answer, are you saying we should draw a 5 cm circle with A in the centre?

    I'm sorry!
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  5. #5
    A riddle wrapped in an enigma
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    Quote Originally Posted by mrsmonopoly View Post
    So if we have to draw the answer, are you saying we should draw a 5 cm circle with A in the centre?

    I'm sorry!
    You could do that. But after you draw 3 or 4 you can easily see what is taking place when you start connecting the centers.
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