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Math Help - how many circles?

  1. #1
    rcs
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    how many circles?

    How many circles may have one point in common?

    My answer is infinitely many... is this correct sir/ma'am?

    thanks
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  2. #2
    Senior Member abhishekkgp's Avatar
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    Quote Originally Posted by rcs View Post
    How many circles may have one point in common?

    My answer is infinitely many... is this correct sir/ma'am?

    thanks
    yep
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  3. #3
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    Hello, rcs!

    What a sloppy question!


    How many circles may have one point in common?

    My answer is infinitely many...

    What do they mean by "how many circles"?


    We can have 73 circles with one point in common.
    . . \bigcirc\;\circ\!\!\bigcirc\;\circ\;\bigcirc\;.\;.  \;.

    We can have 257 circles with two points in common.
    . . \circ\;\bigcirc\;\circ\;\bigcirc\!\!\!\!\bigcirc\; \circ \;\bigcirc \;.\;.\;.

    We can have 3,456 circles with no points in common.
    . . \circ \; \bigcirc \; \circ \;\bigcirc \;.\;.\;.





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  4. #4
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    This image offers a demonstration:

    how many circles?-tcircs.png
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